Changed font in QSEdit headers to Google Sans.

Created new style with same parameters as before but using
placeholder for Google Sans.

Fixes: 79166531
Test: Manual
Change-Id: I12cc34c4fa8e0eeb4e94dafe64f0d6664c8d0da0

packages/SystemUI/res/layout/qs_customize_divider.xml

@@ -23,6 +23,6 @@
     android:gravity="center"
     android:paddingTop="20dp"
     android:paddingBottom="13dp"
-    android:textAppearance="@android:style/TextAppearance.Material.Body2"
+    android:textAppearance="@style/TextAppearance.QSEdit.Headers"
     android:textColor="?android:attr/colorAccent"
     android:text="@string/drag_to_add_tiles" />

packages/SystemUI/res/layout/qs_customize_header.xml

@@ -21,7 +21,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:gravity="center"
-    android:textAppearance="@android:style/TextAppearance.Material.Body2"
     android:minHeight="28dp"
+    android:textAppearance="@style/TextAppearance.QSEdit.Headers"
     android:textColor="?android:attr/colorAccent"
     android:text="@string/drag_to_rearrange_tiles" />

packages/SystemUI/res/values/styles.xml

@@ -495,6 +495,11 @@
            parent="@*android:style/TextAppearance.Material.Notification.Info">
     </style>
 
+    <style name="TextAppearance.QSEdit.Headers"
+        parent="@*android:style/TextAppearance.Material.Body2">
+        <item name="android:fontFamily">@*android:string/config_headlineFontFamily</item>
+    </style>
+
     <style name="edit_theme" parent="qs_theme">
         <item name="android:colorBackground">?android:attr/colorSecondary</item>
     </style>