Add an option whether to show custom emojis in same height

[kwon0408]

Pitch

The new option will be named like "Fix heights for custom emojis".

If activated, a custom emoji will have same height as text, and its width will increase following its aspect ratio. (like "After" in the image below)

If deactivated, it will be shown as before.

Example image

Motivation

There are custom emojis depicting words or phrases in some servers (especially those running Misskey or similar implementations like CherryPick). They are usually longer in width than height.

But the current version (26.2) displays them to fit in a square, so the "word" is barely visible.

[connyduck]

Can you link me a post that has such an emoji please

[kwon0408]

https://hoto.moe/notes/9y27z7thgt

screenshots