Controls a11y - Various fixes

1. Long press on togglerange controls
2. Range status text now corrected displayed when using seek controls
3. Check for valid intent before opening
4. Fix the activity titles

Fixes: 153283023
Fixes: 152932546
Fixes: 152924457
Test: talkback
Change-Id: Ic90cd9de660426838ed2a63e6079224d65c8e6d2