Change the fonts / sizes of the chips labels to match the rest of the compose activity.

part of Bug:5162602 Alignment of elements in compose screen seems off (master/tot/prime)

Change-Id: Ie2125df9888198448d1503edc4cccf3537db016c
diff --git a/res/values/styles.xml b/res/values/styles.xml
index ff6c2f2..2e1c6db 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -203,12 +203,11 @@
     </style>
     <style name="ComposeHeading">
         <item name="android:layout_width">wrap_content</item>
-        <item name="android:layout_height">32dip</item>
-        <item name="android:textSize">12sp</item>
-        <item name="android:textStyle">bold</item>
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:textSize">18sp</item>
         <item name="android:textColor">@color/compose_label_text</item>
         <item name="android:paddingLeft">8dip</item>
-        <item name="android:gravity">center_vertical</item>
+        <item name="android:layout_gravity">center_vertical</item>
      </style>
 
     <style name="message_list_item_normal">