Folder Previews Show Grey Pending Icon

When downloading an app previously the pending icon would show the full color icon when it was in a folder preview. To fix, we consolidated the logic for pending icons in PreloadIconDrawable and moved the logic of the pending state to the ItemInfoWithIcon model to represent the state of a pending application inside the model instead of in views.

Bug: b/324629535
Test: ItemInfoWithIconTest.kt
Flag: None
Change-Id: I4ffab44ddead046adcc84911039c87ea7c304e63