WIP: End all emoji reactions on VS16

[jaller94]

This does not seem to be compatible with Element at the moment. Element does end some but not all emojis with VS16.

Also, as of today MSC2677 hasn't been merged.

[Half-Shot]

The MSC states:

When sending emoji reactions, the key field should include the colourful variation-16 when applicable.

which seems to line up with:

This does not seem to be compatible with Element at the moment. Element does end some but not all emojis with VS16.

?

[Cadair]

Please define "when applicable" 😛

[jaller94]

I thought that "when applicable" means emoji characters vs. text characters.
However, it's emoji characters with a text variant vs. those without.

you wouldn't put VS16 on all emojis - only when there's a text variant
~Dave

I will change the PR accordingly.

[jaller94]

I don't think this needs work unless we discover a tangible bug.