Let bug report shortcut handle the case that bug report handler app is not available

- Let bug report shortcut request bug report when bug report handler app is not available

BUG: 151595664
Test: Flash and press bug report shortcut, then confirm requesting bug report when bug report handler app is not available
Change-Id: I113a0dbc4c1c4468ce88a548c4e2258e8886eacd