[Provider Model] Fix QS internet Panel accessibility issues

- Set textColorSecondary to subtitle
- Update textColorSecondary to summary of networks
- Increase clickable area to networks toggle
- Increase clickable area to done button

Bug: 200228682
Bug: 200229387
Bug: 200229545
Bug: 200229960
Bug: 200230182
Bug: 200231223

Test: manual test

atest -c InternetAdapterTest \
         InternetDialogControllerTest \
         InternetDialogTest

Change-Id: I91b0b8c4c57d3e70c5916dbf17cd8376037dbbba