Some visual tweak fixes.

- Use correct color action bar in contact name edit activity.
- Fix compose text height to match send button height.

res/layout/activity_contact_name_edit.xml

@@ -11,8 +11,9 @@
         android:id="@+id/toolbar"
         android:layout_width="match_parent"
         android:layout_height="?attr/actionBarSize"
-        android:theme="@style/TextSecure.LightActionBar"
-        android:background="@color/signal_primary"
+        android:theme="?attr/actionBarStyle"
+        android:minHeight="?attr/actionBarSize"
+        android:background="?attr/colorPrimary"
         android:elevation="4dp"/>
 
     <ScrollView

res/layout/conversation_input_panel.xml

@@ -76,8 +76,8 @@
                         android:layout_marginStart="6dp"
                         android:layout_marginRight="6dp"
                         android:layout_marginEnd="6dp"
-                        android:layout_marginTop="9dp"
-                        android:layout_marginBottom="9dp"
+                        android:layout_marginTop="8dp"
+                        android:layout_marginBottom="8dp"
                         android:layout_gravity="center_vertical"
                         android:layout_weight="1"
                         android:nextFocusForward="@+id/send_button"