Character spacing/overlap/kerning bug after escape characters in `Paragraph` when using non-default `alignment` argument

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## Description of bug / unexpected behavior

When using `alignment` in the arguments for `Paragraph` (e.g. `alignment='left'`), character overlap occurs after escaped characters (e.g. `\n`, `\t`). This doesn't occur when omitting the `alignment` argument entirely (although this **still left aligns text** by default - that is to say, omitting `alignment` and using `alignment='left'` should have the same effect but don't).

## Expected behavior

No character overlap after newlines, tabs, etc. when using non-default `alignment` arguments.

## How to reproduce the issue

Code for reproducing the problem

```py
class UsingParagraph(Scene):
def construct(self):
paragraph = Paragraph('nothing', 'With \nNewlines', '\tWith Tabs')

self.play(Create(paragraph))
self.wait()
self.play(Uncreate(paragraph))

paragraph = Paragraph('alignment=""', 'With \nNewlines', '\tWith Tabs', alignment='')

self.play(Create(paragraph))
self.wait()
self.play(Uncreate(paragraph))

paragraph = Paragraph('alignment="left"', 'With \nNewlines', '\tWith Tabs', alignment='left')

self.play(Create(paragraph)) # HERE WE GET THE BUG WITH CHARACTER OVERLAP
self.wait()
self.play(Uncreate(paragraph))

paragraph = Paragraph('alignment="right"', 'With \nNewlines', '\tWith Tabs', alignment='right')

self.play(Create(paragraph)) # THIS WOULD ALSO APPEAR TO BE A VARIATION OF THE BUG
self.wait()
self.play(Uncreate(paragraph))

paragraph = Paragraph('alignment="left", no ligatures', 'With \nNewlines', '\tWith Tabs', alignment='left', disable_ligatures=True)

self.play(Create(paragraph)) # NEWLINES AND TABS ENTIRELY REMOVED BY DISABLE LIGATURES AS EXPECTED
self.wait()
self.play(Uncreate(paragraph))
```

## Additional media files

Images/GIFs


## Additional comments

It's highly likely this bug is related to #2366 and would likely be solved in the rewrite proposed in #2355

Reproduce the issue with the supplied UsingParagraph scene, then inspect Paragraph handling for explicit alignment and escaped newlines or tabs while comparing it with the omitted-alignment case. Review related issues #2366 and #2355; done means the scene renders without character overlap for the demonstrated alignments.

Written by the indexing model from the issue text.