Fixed "hanging" spinner.

Making sure certain events happen on the main thread (i.e SignOut and Rebuild).
Gracefully handling missing profile photo.
Additional checks to make sure client is connected.
Enhanced logging of interactive token acquisition failures.

Author: jt-phthealth

.gitignore

@@ -403,3 +403,4 @@ logs/
 
 .ionide
 src/DesktopClient/PresenceLight/settings.json
+settings.json