align contact category headlines

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/src/main/res/layout/rv_item_title_header.xml

@@ -31,7 +31,7 @@
         android:id="@+id/title_text_view"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginStart="@dimen/standard_margin"
+        android:layout_marginStart="72dp"
         android:layout_marginTop="@dimen/standard_half_margin"
         android:layout_marginEnd="@dimen/standard_margin"
         android:layout_marginBottom="@dimen/standard_half_margin"