Bug 917207 - Create a system region for cards view and migrate tests to use it
Bug 920449 - Refactor test_cards_view_with_one_app.py

Conflicts:
	tests/python/gaia-ui-tests/gaiatest/tests/functional/cards_view/manifest.ini
Merge pull request #13307 from bobsilverberg/cp12265

Bug 934137 - [v1.2] Update cards view app and tests to be in line with master