The implementations have been imported into SettingsLib. Setting's copy
can now be removed, which this change also does.
Test: Manually check battery status, which uses FooterMixin, looks OK.
make RunSettingsLibRobotTests && make RunSettingsRoboTests
&& make RunSettingsGoogleRoboTests
Change-Id: I6539605fdad80d156ff5ff249e68df4a1c412067
Add two items to User & accounts dashboard, and refractor
UserCapabilities so that it can be accessed in the new controller.
Test: RunSettingsRoboTests
Bug: 31801423
Change-Id: Ib446ad6c99d4cc6405a17cf82d2d86e044870b73