Shows size power 2 (in MiB), but prints as if it is power 10 (MB)

- os: Fedora 37
- `lsd --version`: lsd 0.22.0

lsd shows file size in non-si mebibytes/gibibytes (power of 2), while suggests it is megabytes/gigabytes (SI, power of 10).
In other words, the program should print 10 M**i**B instead of 10 **MB**.

## Expected behavior

```
$ lsd -la openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img
.rw-r--r--. valdikss valdikss 120 M**i**B Wed Jan 18 19:17:34 2023 openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img
```

## Actual behavior
```
$ lsd -la --size=bytes openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img
.rw-r--r--. valdikss valdikss 126123520 Wed Jan 18 19:17:34 2023 openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img

$ lsd -la openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img
.rw-r--r--. valdikss valdikss 120 **MB** Wed Jan 18 19:17:34 2023 openwrt-22.03.3-x86-generic-generic-squashfs-combined-efi.img
```

126123520 bytes is 126 MB or 120 MiB.

Start with lsd's file-size display path and compare the default output with the --size=bytes option using the example image size from the issue. Verify that power-of-two values are labeled with binary units such as MiB rather than SI labels such as MB, while byte output remains unchanged.

Written by the indexing model from the issue text.