Implement UI for dual target tiles

Some smaller changes as well:
 - Pulls the icon label out of the tile for icon only tiles.
 - Adjust the edit mode borders to be a dashed line

Bug: 331598956
Test: manually launching QSActivity
Flag: com.android.systemui.qs_ui_refactor

Change-Id: Ifbe9b6931a0be765af041f97085ffcf9ed8e1fc9