Fixed title of languae window

ubinstall-gtk-language.glade

@@ -123,7 +123,7 @@
           <object class="GtkLabel" id="headerTopic">
             <property name="visible">True</property>
             <property name="can-focus">False</property>
-            <property name="label" translatable="yes">Available languages ​​in the system</property>
+            <property name="label" translatable="yes">Available languages in the system</property>
             <attributes>
               <attribute name="weight" value="bold"/>
             </attributes>