Refactor: Use AppChipStatus enum instead of isExpanded boolean

- Replaced the boolean `isExpanded` flag in `IconAppChipView` with an enum `AppChipStatus` for better state management.
- Added `AppChipStatus` enum with `Expanded` and `Collapsed` states.

Bug: 403193877
Flag: com.android.launcher3.enable_overview_icon_menu
Test: OverviewImageTest
Test: OverviewSplitTaskImageTest
Change-Id: Ibbf8ccd963e540f5bd766569a1df01ad1bafd4c0