[Feature]: emoji reactions: show summarized emoji count including own reaction and differ color for emoji including own reaction

[foss-]

Describe your feature

Currently
When a third party reacts with e.g. a thumbs up emoji and then the client user also reacts with that same emoji, two thumbs up emojis are shown to allow the user to easily identify their own reaction. Also third-party reactions are not (yet) summarized.

Expected
A preferable implementation may be how signal has solved this: they always gather identical emojis and show the emoji reaction count. To indicate the reaction of the local user, they use a different background color.

I think this makes for a more streamlined UX and would be nice to adapt. The long press menu showing the reaction summary along user information currently still lacks avatars (known issue).