New memberlist

[MidhunSureshR]

• Implement the top section of memberlist

  • Shows just invite button if less than 20 people
  • Shows search bar + invite button for more than 20 people

• Translate words

• Change "Mod" to "Moderator"

• Implement new member tile

  • Implement new avatar
  • Implement Presence Icon
  • Implement name
  • Implement Admin/Mod label
  • Implement verification status icon
  • Implement disambiguate name

• Implement loading view

• Implement sensible search functionality

  • member count div shows "no result"
  • member count shows matching count

• Show invited members at top

• Fix broken memberlist header - UI changes on search

• Implement invite functionality

  • Invite button shows invite dialog
  • Invite button is disabled if user lacks permission to invite users
  • When invite button is disabled, a relevant tooltip saying as much is shown

• Render ThreePidInvites

• Fix any user presence change causing list to re-render

• Accessibility - Make it possible to navigate the list via keyboard

• Write tests

  • Jest Tests
    • MemberTileView
    • PresenceIconView
    • MemberListView
    • MemberListHeaderView

Will rewrite git history to be sensible before review...

[MidhunSureshR]

Moved to #28874