This aligns text on preferences on the same screen when some of them
don't have icons.
- Use a custom layout for
preference
EditPreference
switch preference
VolumeSeekPreference
DialogPreferencei
Restricted*Preference
DropdownPreference
- Moved related style defs into a new file styles_preference.xml,
because current styles file is too large to read.
- Switch <PreferenceScreen ...> to <Preference ...> for a bunch of
regular preferences.
- Also removed some dead style.
Bug: 33430928
Test: runtest --path packages/apps/Settings/tests/app/src/com/android/settings/dashboard/PreferenceThemeTest.java
Change-Id: Ic9b75d3f133f2a83cd999297b8596253d4b10161
