Add logging for profile switching for sharesheet

We want to know which profile people share from and if users are
switching from work to personal profile when sharing and vice versa.
This adds the current profile to the sharesheet and also logs when the
profile is switched.

Bug: 124503277
Test: Added new unit tests for ChooserActivity and IntentForwardActivity
Change-Id: Ideb83682bf3395258ff457988f4a3e9f519a844c