Fix display of non-square custom emoji
Open
Low priority
- Dominant language
- JavaScript
- Stars
- 8
- Forks
- 1
- Avg merge
- 1d 9h
- Merged PRs (30d)
- 7
Description
Non-square custom emoji are currently incorrect displayed in a couple of places.
In the emoji picker, they're tiled due to background-repeat; e.g. `:polyglots:`:

In the autocomplete, they're displayed as-is, so the names don't line up; e.g. the head emoji:

We should implement the following:
* [ ] Disable emoji tiling in the emoji picker; this was caused by https://github.com/missive/emoji-mart/issues/361 which is fixed, but requires an update to emoji-mart
* [ ] Set the size on images in the autocomplete to ensure names line up
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