Move hints from Go src.

Currently, Go icon recents does not build because the shared hints src
uses resources only available in recents_ui_overrides. This fixes the
issue by moving out hints from the shared source to
recents_ui_overrides as Go recents will not use hints.

Bug: 114136250
Test: Build NexusLauncher, l3GoWithQuickstep
Change-Id: If416d6e45f1b390b76c195a9ecd89c4779e2281b