feat/message-reactions

[DimaIvashchuk]

I have added a minimal working functionality for message reactions.
@kesha-antonov there might be a mess, sorry for that:) but I hope you will get basic understanding.
There are couple of things to consider:

1. Full modal with emojies comes from my personal npm lib that I have created for my self, it is not really well tested and there are couple of things that can be improved.
2. In the original implementation I use bottom sheet from gorham. here is not. You might consider using it
3. also the animations might be uncompleted or inappropriate.
4. Also i didn't add an ability to fast react on double tap, but it should be pretty much straightforward