Set a fixed size for the left pane

Change-Id: Iadd4f2c6e61903b4eaaa1ea00ca3db2138582dee
diff --git a/res/layout-xlarge/contact_browser.xml b/res/layout-xlarge/contact_browser.xml
index 18212d3..c1541eb 100644
--- a/res/layout-xlarge/contact_browser.xml
+++ b/res/layout-xlarge/contact_browser.xml
@@ -21,9 +21,8 @@
     android:layout_height="match_parent">
     <FrameLayout 
         android:id="@+id/list_container"
-        android:layout_width="0px"
-        android:layout_height="match_parent"
-        android:layout_weight="1" />
+        android:layout_width="400dip"
+        android:layout_height="match_parent" />
 
     <!--  Holder for detail- or editor-fragment. -->
     <FrameLayout