The Share App system shortcut is disabled for apps that are deemed unshareable. This updates the UX to gray out the shortcut instead of hiding it. When the user clicks on the grayed out shortcut, a Toast message is displayed. This update also enables the shareability check.
In order to properly gray out the shortcut, this also fixes a bug with BubbleTextView in which ColorStateLists weren't applied correctly.
Bug: 202556634
Bug: 204495363
Test: Manual (observed UX on Wembley device in regular and dark themes)
Test: m -j RunLauncherGoGoogleRoboTests
Change-Id: Ieb04baf8c9cb9d325119cb97fceb96f2fc5a62ff
Bug: 196391749 Update work edu button stroke color
Bug: 195497351 Update header font size for work apps paused state
Bug: 192673256 Show ArrowTip elevation
Bug: 192668800 Support for two line PopupOption view
Test: visual
Change-Id: I65f8c6152f54306756d6cb66de2581aff45b8d47