Fix sharing to another profile where an app has multiple targets

Moves the fixUris call from onTargetSelected directly to the intent
launch to ensure the intent which is actually started is updated with
userId specific URIs.

Bug:242165528
Bug:242605257
Test: manually share image from personal profile to work gmail,
first with chat target then backing up and selecting the main target

Change-Id: Iabf5dcf2612fe718f2f0886e2e5e9b76f37af1e1