Bugfix: set appIcon and appLabel fields on draft sessions created for unarchival.

* In case the app icon is not set on draft sessions, session label is not respected by launcher3. Hence we provide no-op archived app icon as well as part of the session.

Test: verified bugfix locally.
Bug: 319495216
Change-Id: I5ac71351dffdf354d58fd7e106fcb9b7ffa04fcc
3 files changed