fix so tab label expands and fills

src/gtkgui.glade

@@ -18802,8 +18802,8 @@ Status message</property>
 		    </widget>
 		    <packing>
 		      <property name="padding">0</property>
-		      <property name="expand">False</property>
-		      <property name="fill">False</property>
+		      <property name="expand">True</property>
+		      <property name="fill">True</property>
 		    </packing>
 		  </child>