Shrinking the width of the configuration chooser dropdown.

Assets/Scenes/Configurations/ConfigurationChooser.unity

   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
   m_AnchoredPosition: {x: 0, y: 50}
-  m_SizeDelta: {x: 400, y: 120}
+  m_SizeDelta: {x: 320, y: 120}
   m_Pivot: {x: 0, y: 0}
 --- !u!114 &21266733
 MonoBehaviour: