[ThemePicker 7/N] Initial setup of ThemeFragment UI

Add a view for the theme preview card for font, and hook up
the option tiles as well.

Bug: 120559294

Change-Id: I7efa779e9db730f8aaff151eac65bee42ed5db6b
diff --git a/res/layout/theme_option.xml b/res/layout/theme_option.xml
index fc08f6b..9e2ef82 100644
--- a/res/layout/theme_option.xml
+++ b/res/layout/theme_option.xml
@@ -63,4 +63,4 @@
             android:layout_alignParentBottom="true"
             android:layout_alignParentRight="true"/>
     </RelativeLayout>
-</LinearLayout>
\ No newline at end of file
+</LinearLayout>