SVG rounded caps/joins are rendered as sharp

Nobody has claimed this yet.

## Description of bug / unexpected behavior

A line art SVG created in Inkscape with rounded caps/joins is rendered with sharp caps/joins

## Expected behavior
The caps/joins are correctly rounded

## How to reproduce the issue
Create an `SVGMobject` with the attached SVG file and render it

Code for reproducing the problem

```py
from manim import *

class AnimateLogo(Scene):
def construct(self):
border = SVGMobject("border.svg")
border.set_stroke(WHITE)

self.play(Write(border), lag_ratio=0.5, run_time=2.0)
self.wait(10.0)

```

## Additional media files

Images/GIFs

https://github.com/ManimCommunity/manim/assets/7611728/933b3852-36d7-4b33-886d-187affc76bd9

https://github.com/ManimCommunity/manim/assets/7611728/98e33b33-2aab-418b-b81c-354f5272d1a0

## Logs
Terminal output

```
sxv@hierarch ~/Videos/manim/xg_logo_animate manim -pqh scene.py AnimateLogo -v DEBUG
Manim Community v0.18.0

[01/06/24 00:26:57] DEBUG Hashing ... hashing.py:350
DEBUG Hashing done in 0.024715 s. hashing.py:362
DEBUG Hash generated : 3529212410_1921715014_223132457 hashing.py:365
DEBUG List of the first few animation hashes of the scene: ['3529212410_1921715014_223132457'] cairo_renderer.py:87
Animation 0: Write(SVGMobject): 91%|█████████████████████████████████████████████████████████████████████████████████████████████████████████��██████████████████████ | 109/120 [00:02<00:00, 53.46it/s
�Animation 0: Write(SVGMobject): 96%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▏ | 115/120 [00:02<00:00, 54.19it/s
[01/06/24 00:26:59] INFO Animation 0 : Partial movie file written in scene_file_writer.py:527
'/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/partial_movie_files/AnimateLogo/3529212410_1921715014_223132457.mp4'
DEBUG Animation with empty mobject animation.py:174
DEBUG Hashing ... hashing.py:350
DEBUG Hashing done in 0.013392 s. hashing.py:362
DEBUG Hash generated : 3040924799_2116254338_743700349 hashing.py:365
DEBUG List of the first few animation hashes of the scene: ['3529212410_1921715014_223132457', '3040924799_2116254338_743700349'] cairo_renderer.py:87
[01/06/24 00:27:04] INFO Animation 1 : Partial movie file written in scene_file_writer.py:527
'/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/partial_movie_files/AnimateLogo/3040924799_2116254338_743700349.mp4'
INFO Combining to Movie file. scene_file_writer.py:617
DEBUG Partial movie files to combine (2 files): scene_file_writer.py:561
['/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/partial_movie_files/AnimateLogo/3529212410_1921715014_223132457.mp4',
'/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/partial_movie_files/AnimateLogo/3040924799_2116254338_743700349.mp4']
INFO scene_file_writer.py:735
File ready at '/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/AnimateLogo.mp4'

INFO Rendered AnimateLogo scene.py:241
Played 2 animations
INFO Previewed File at: '/home/sxv/Videos/manim/xg_logo_animate/media/videos/scene/1080p60/AnimateLogo.mp4' file_ops.py:227
VLC media player 3.0.20 Vetinari (revision 3.0.20-0-g6f0d0ab126b)
[000055fa3d569550] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
sxv@hierarch ~/Videos/manim/xg_logo_animate libva error: vaGetDriverNames() failed with unknown libva error
[00007f64f0001f50] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error
[00007f64f0001f50] glconv_vaapi_drm gl error: vaInitialize: unknown libva error
[00007f64f0001f50] glconv_vaapi_drm gl error: vaInitialize: unknown libva error
[00007f64f0001f50] glconv_vaapi_drm gl error: vaInitialize: unknown libva error
[00007f6508c0e6a0] avcodec decoder: Using NVIDIA VDPAU Driver Shared Library 545.29.06 Thu Nov 16 01:46:47 UTC 2023 for hardware decoding

```

Rounded SVG:

Sharp rendered video:

## System specifications

System Details

- Arch Linux
- RAM: 24GB
- Python version (`python/py/python3 --version`): 3.11.6
- Installed modules (provide output from `pip list`):
```
sxv@hierarch ~/Videos/manim/xg_logo_animate pip list
Package Version
----------------------------- ----------------------------------
alabaster 0.7.13
annotated-types 0.6.0
appdirs 1.4.4
arandr 0.1.11
asciidoc 10.2.0
attrs 23.1.0
autocommand 2.2.2
Babel 2.12.1
backports.cached-property 1.0.2
beautifulsoup4 4.12.2
blessed 1.20.0
btrfsutil 6.6.3
build 1.0.3
CacheControl 0.13.1
cachetools 5.3.2
cachy 0.3.0
certifi 2023.11.17
cffi 1.16.0
chardet 5.2.0
charset-normalizer 3.3.2
cleo 2.1.0
click 8.1.7
click-default-group 1.2.4
cloup 3.0.4
colorama 0.4.6
colour 0.1.5
contourpy 1.2.0
coverage 6.5.0
crashtest 0.4.1
cryptography 41.0.7
cssselect 1.2.0
cycler 0.12.1
Cython 3.0.7
dbus-python 1.3.2
decorator 5.1.1
distlib 0.3.8
distro 1.8.0
docopt 0.6.2
docutils 0.20.1
dulwich 0.21.7
entrypoints 0.4
evdev 1.6.1
fastjsonschema 2.19.1
filelock 3.13.1
flake8 6.1.0
fonttools 4.47.0
future 0.18.3
glcontext 2.5.0
google-api-core 2.15.0
google-auth 2.25.2
googleapis-common-protos 1.62.0
gufw 24.4.0
html5lib 1.1
hypothesis 6.92.2
idna 3.5
imagesize 1.4.1
importlib-metadata 5.0.0
inflect 7.0.0
iniconfig 2.0.0
inquirer 3.1.3
installer 0.7.0
isosurfaces 0.1.0
jaraco.classes 3.3.0
jaraco.context 4.3.0
jaraco.functools 3.9.0
jaraco.text 3.11.1
jeepney 0.8.0
Jinja2 3.1.2
jsonschema 4.20.0
jsonschema-specifications 2023.12.1
keyring 24.3.0
keyutils 0.6
kiwisolver 1.4.5
lark 1.1.8
lensfun 0.3.4
libevdev 0.11
libtorrent 2.0.9
lockfile 0.12.2
lxml 4.9.2
manim 0.18.0
ManimPango 0.5.0
mapbox_earcut 1.0.1
markdown-it-py 3.0.0
MarkupSafe 2.1.3
matplotlib 3.8.2
mccabe 0.7.0
mdurl 0.1.2
menulibre 2.2.3
meson 1.3.1
moddb 0.10.0
moderngl 5.9.0
moderngl-window 2.4.5
more-itertools 10.1.0
msgpack 1.0.5
multipledispatch 1.0.0
networkx 3.2.1
numpy 1.26.2
ordered-set 4.1.0
packaging 23.2
pandas 1.5.3
perf 0.1
pexpect 4.9.0
piexif 1.1.3
Pillow 10.1.0
pip 23.3.2
pkginfo 1.9.6
platformdirs 4.1.0
pluggy 1.3.0
ply 3.11
poetry 1.7.1
poetry-core 1.8.1
poetry-plugin-export 1.5.0
pooch 1.8.0
protobuf 4.25.1
psutil 5.9.6
ptyprocess 0.7.0
pyasn1 0.4.8
pyasn1-modules 0.2.8
pybind11 2.11.1
pycairo 1.25.1
pycodestyle 2.11.1
pycparser 2.21
pydantic 2.5.2
pydantic_core 2.14.5
pydub 0.25.1
pyflakes 3.1.0
pyglet 2.0.10
Pygments 2.17.2
PyGObject 3.46.0
pyOpenSSL 23.3.0
pyparsing 3.1.1
pyproject_hooks 1.0.0
PyQt5 5.15.10
PyQt5-sip 12.13.0
pyrate-limiter 3.1.0
pyrr 0.10.3
pyrsistent 0.19.3
pyserial 3.5
pytest 7.4.4
python-dateutil 2.8.2
python-distutils-extra 2.39
python-editor 1.0.4
pytz 2023.3.post1
pyxdg 0.28
PyYAML 6.0.1
ranger-fm 1.9.3
rapidfuzz 3.6.0
readchar 4.0.5
referencing 0.32.0
requests 2.31.0
requests-toolbelt 1.0.0
rich 13.7.0
rpds-py 0.15.2
rsa 4.9
SciPy 1.11.4
scour 0.38.2
screeninfo 0.8.1
SecretStorage 3.3.3
setuptools 69.0.3
setuptools-scm 8.0.4
shellingham 1.5.0.post1
six 1.16.0
skia-pathops 0.8.0
snowballstemmer 2.2.0
sortedcontainers 2.4.0
soupsieve 2.5
Sphinx 7.2.6
sphinx-rtd-theme 1.3.0
sphinxcontrib-applehelp 1.0.7
sphinxcontrib-devhelp 1.0.5
sphinxcontrib-htmlhelp 2.0.4
sphinxcontrib-jquery 4.1
sphinxcontrib-jsmath 1.0.1
sphinxcontrib-qthelp 1.0.6
sphinxcontrib-serializinghtml 1.1.9
srt 3.5.3
svgelements 1.9.6
tomli 2.0.1
tomlkit 0.12.3
toolz 0.12.0
tqdm 4.66.1
trove-classifiers 2023.12.1
typing_extensions 4.9.0
uc-micro-py 1.0.2
udiskie 2.5.1
ufw 0.36.2
urllib3 1.26.18
validate-pyproject 0.13.post1.dev0+gb752273.d20230520
vimiv 0.9.0
virtualenv 20.25.0
watchdog 2.3.0
wcwidth 0.2.6
webencodings 0.5.1
wheel 0.42.0
xinput-gui 0.3.1
zipp 3.17.0
zstandard 0.22.0

```

FFMPEG

Output of `ffmpeg -version`:

```
sxv@hierarch ~/Videos/manim/xg_logo_animate ffmpeg -version
ffmpeg version n6.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13.2.1 (GCC) 20230801
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --
enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --ena
ble-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-li
bplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --e
nable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-
libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-version3 --enable-vulkan
libavutil 58. 29.100 / 58. 29.100
libavcodec 60. 31.102 / 60. 31.102
libavformat 60. 16.100 / 60. 16.100
libavdevice 60. 3.100 / 60. 3.100
libavfilter 9. 12.100 / 9. 12.100
libswscale 7. 5.100 / 7. 5.100
libswresample 4. 12.100 / 4. 12.100
libpostproc 57. 3.100 / 57. 3.100

```

## Additional comments

Start at the SVGMobject entry point and reproduce the issue with the attached SVG and the provided AnimateLogo example. Trace how SVG stroke caps and joins are imported and rendered, then verify that the rendered output preserves the rounded appearance shown in the expected behavior.

Written by the indexing model from the issue text.