[gnome-builder] libide/tweaks: setup language page title for demo

[Christian Hergert <chergert src gnome org>]

commit 7c686d3cbe4f955b2254e24129435dfccb49831a
Author: Christian Hergert <chergert redhat com>
Date:   Tue Aug 2 23:37:55 2022 -0700

    libide/tweaks: setup language page title for demo

 src/libide/tweaks/tests/demo/040-code-languages.ui | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/src/libide/tweaks/tests/demo/040-code-languages.ui 
b/src/libide/tweaks/tests/demo/040-code-languages.ui
index 88d244e52..3bd87ea1c 100644
--- a/src/libide/tweaks/tests/demo/040-code-languages.ui
+++ b/src/libide/tweaks/tests/demo/040-code-languages.ui
@@ -12,6 +12,11 @@
                 <property name="model">GtkSourceLanguages</property>
                 <child>
                   <object class="IdeTweaksPage" id="language_page">
+                    <binding name="title">
+                      <lookup name="name" type="GtkSourceLanguage">
+                        <lookup name="item">language_page_factory</lookup>
+                      </lookup>
+                    </binding>
                   </object>
                 </child>
               </object>