Fix some small issues

Merge branch 'master' of github.com:chat-sdk/chat-sdk-ios

Update to 4.10.6

Fix issue with public threads not showing up. Also support custom thr…

…ead images

Fix issue with Firebase UI

Update to 4.10.3

Merge remote changes

Update swift project

Improve login flow, make customization easier, small refactor to make…

… API more consistent

Update to 4.9.9