do not resize the message_textview in groupchat window when we resize the group chat window

plugins/gtkgui/gtkgui.glade

@@ -7065,7 +7065,6 @@ Custom</property>
 	      <child>
 		<widget class="GtkVPaned" id="vpaned4">
 		  <property name="visible">True</property>
-		  <property name="position">225</property>
 
 		  <child>
 		    <widget class="GtkHPaned" id="hpaned">
@@ -7137,12 +7136,13 @@ Custom</property>
 		    </widget>
 		    <packing>
 		      <property name="shrink">True</property>
-		      <property name="resize">False</property>
+		      <property name="resize">True</property>
 		    </packing>
 		  </child>
 
 		  <child>
 		    <widget class="GtkScrolledWindow" id="scrolledwindow19">
+		      <property name="height_request">55</property>
 		      <property name="visible">True</property>
 		      <property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
 		      <property name="vscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
@@ -7173,7 +7173,7 @@ Custom</property>
 		    </widget>
 		    <packing>
 		      <property name="shrink">True</property>
-		      <property name="resize">True</property>
+		      <property name="resize">False</property>
 		    </packing>
 		  </child>
 		</widget>