UI Improvement: Fix unexpected progress bar around app icon added to Workspace after unarchival.

* In case app icon is added to workspace after unarchival completes for archived app, it shows a completely filled progress bar around the icon.
* This behaviour exists because the 'FLAG_ARCHIVED' flag is copied from `AppInfo` item.
* This cl updates the 'FLAG_ARCHIVED' flag for 'AllApps' item once unarchival completes.

Test: verified bugfix locally.
Bug: 319213296
Flag: ACONFIG com.android.launcher3.enable_support_for_archiving DEVELOPMENT
Change-Id: I739225707a11bc9a6aa23e81775b4e036ce81a7e