Make "Style" translatable

Wording has been confirmed for it, so make it translatable.

Bug: 126733945
Change-Id: If19db1aa840e24a8e511dff80a510b185cc69f54
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 10067c8..db85aaa 100755
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -20,7 +20,7 @@
 
     <!-- Title of a section of the customization picker where the user can select a Theme for the
         device. [CHAR LIMIT=15] -->
-    <string name="theme_title" translatable="false">Style</string>
+    <string name="theme_title">Style</string>
 
     <!-- Title of a section of the customization picker where the user can select a Clock face.
         [CHAR LIMIT=15] -->