[Feature Request] Improve biography change highlighting

[Flonky]

What & Why?

Currently, logged changes to VRChat player biographies use a simple before and after view, where changed sections are highlighted with a single color (Added in #972). Example:

This takes up quite a bit of space and can be annoying when comparing large biographies, due to having to reference the other view to see what changed.

The proposal

I'd like to propose a different way to visualize biography changes that takes up less space and makes specific edits a lot easier to reference.
I've created a quick reference design of how such an implementation could look like:

The color choice for this was made fairly arbitrarily and should be reworked for better legibility

This design is a merge of how changes are shown when comparing document edits in Google Docs and GitHub, since it's conceptually similar to a simple git diff visualization but could benefit from a proofreading like experience.
All changes are shown in-line, additions are marked in green and deletions in red, while also being struck through.

[hactazia]

#1064 Improve biography change highlighting