Usability fixes and crash reporter

Friends list is usable while matchmaking is busy
Host level added to session advertisements
Fixed cases of gamepad/keyboard icon switching not working
Fix incorrect cases of connection issues warnings when joining a map
Fix focus issues on Painter menu
Re-enabled kicks/bans
Adjusted party menu buttons
Updated UnsellableItems list to include fragment items
Fix unexpected additions/overlaps of abilities on ability bar
Default ability now only equips to the first slot
Adjusted gamepad nav in party menu member list section
Fixed duplicate set items granting multiple stacks
Fixed party list only showing one party when searching for any difficulty
Fix issues with video mode changes and confirmation/resetting when unable to confirm
Fix abilities causing friendly and self damage
Fix main menu becoming unresponsive when unable to communicate with Steam
Correct login issues not showing related errors to users when they start the game
Crash report client now displayed when game crashes, please add description and send to us!