[SB][Screen Chips] Distinguish share-to-app and cast-to-other-device.

The share-to-app chip has a different icon from the cast-to-other-device
chip. This CL adds a way to distinguish them, and shows chips with
different icons accordingly.

Bug: 332662551
Flag: com.android.systemui.status_bar_screen_sharing_chips
Test: Use the Cast QS tile to cast to a different device -> verify chip
appears with the cast icon
Test: Share your screen with an app -> verify chip appears with the
share icon (real icon coming later)
Test: atest MediaProjectionManagerRepositoryTest
MediaProjectionChipInteractorTest

Change-Id: Ic22cc8a6ba0a10ec9e03fc3e9a257b8b729fcbb3