chore: upgrade emoji mart

[mattkrick]

Description

Our TipTap Emoji menu is half broken & the reactji picker doesn't stay on screen in the discussion tab.
To fix it, we first have to upgrade emoji mart, then we can use it to fix everything else...
To fix emoji-mart, we need to use radix-ui/react-popever, which requires #10462

Notes:

• this uses native emojis, so linux, windows, and apple users will all see slightly different images. this is how it is working currently (tbh I thought i standardized on apple, but i guess not!) this is probably the best way to do it because then we aren't breaking licensing by showing apple emojis on windows devices. It also means we save 4.4MB because we don't have to load the sprite sheet with all the apple emojis.