When we have more than two accounts, do not show only two firsts and show...

When we have more than two accounts, do not show only two firsts and show scrollbar, make windows bigger.

data/glade/accounts_window.glade

@@ -32,7 +32,7 @@
 	  <property name="visible">True</property>
 	  <property name="can_focus">True</property>
 	  <property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
-	  <property name="vscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
+	  <property name="vscrollbar_policy">GTK_POLICY_NEVER</property>
 	  <property name="shadow_type">GTK_SHADOW_IN</property>
 	  <property name="window_placement">GTK_CORNER_TOP_LEFT</property>