Add personality and make things a bit clear. 

Fixes #3074

The React app or "three column view" was built for an organisation that no longer use Hypha. No current implementors use it. Removing it simplifies Hypha quite a bit.

Co-authored-by: Saurabh Kumar <theskumar@users.noreply.github.com>

Fixes #3055

Adding weblate widget to readme

Adding di to Maintainers

Adding DFF to implementers list

added lots of badges!

Added more to community and updated support section