Themes: Add Live previews for applied themes and fonts

Co-authored-by: ender1324 <ender1324@abv.bg>
Signed-off-by: AndroBuddy <anirudhchimpidi8@gmail.com>
Signed-off-by: Hưng Phan <phandinhhungvp2001@gmail.com>

res/xml/cherish_settings_theme.xml

@@ -22,6 +22,9 @@
         android:key="theme_customization_category"
         android:title="@string/theme_customization_category">
 		
+		<ListPreference
+	    android:layout="@layout/base_preview" />
+		
 		<Preference
             android:key="dark_ui_mode"
             android:title="@string/dark_ui_mode"
@@ -56,6 +59,9 @@
                 android:targetClass="com.android.customization.picker.LockClockPickerActivity" />
         </Preference>
 		
+		<ListPreference
+            android:layout="@layout/font_preview" />
+		
 		<com.android.settings.display.FontDialogPreference
         android:key="custom_font"
 		android:icon="@drawable/ic_font"