Update preferences to Material Next styling

Styles are forked from SettingsLib to avoid using any private APIs.

Test: Settings root, all apps, and about have new style on S
Bug: 187732263
Fix: 188254205, 188012913
Change-Id: I0ca55eecbc82cfa5d0b8707beb4bb7c82b2aa2b1
diff --git a/AndroidManifest-common.xml b/AndroidManifest-common.xml
index d725a16..4eecf29 100644
--- a/AndroidManifest-common.xml
+++ b/AndroidManifest-common.xml
@@ -144,7 +144,7 @@
         <activity
             android:name="com.android.launcher3.settings.SettingsActivity"
             android:label="@string/settings_button_text"
-            android:theme="@style/HomeSettingsTheme"
+            android:theme="@style/HomeSettings.Theme"
             android:exported="true"
             android:autoRemoveFromRecents="true">
             <intent-filter>