Double tap to react

**Is your feature request related to a problem? Please describe.**
Many other mobile apps use double tap to react or like a message - whatsapp, iOS message app, tiktok, instagram. Would be nice to use this too!

**Describe the solution you'd like**
Double-tapping on a message brings up the 'react' row of icons, like a long-tap -> react.

**Describe alternatives you've considered**
Signal uses double-tap to edit a message. Also convenient but I think reacting is more relevant. Jan in the design chat:
> Yep, that does sound like a good enhancement! :) Could you open it as an issue in the Talk mobile repos?
> Reaction seems more apt for double tap, as e.g. Instagram and Tiktok do a like/love on double tap.

Ref https://github.com/nextcloud/talk-android/issues/5240 for android-talk