Add loading screen to client
Add room sidebar and make sidebar user-list work
Add scroll to room sidebar
Eugh firefox layout woes
Bump up tab size
Fix tab alert styling
Fix sidebar users count
Remove unused assets
Add room sidebar toggler
Fix sidebar layer issue
Merge branch 'release/0.3.0' into release/0.3.0-simon-xmpp
Refactored XMPP implementation