gnome: add border relief to video quality button

So that it has the same look as the other buttons.

Issue: #80106
Change-Id: Ic50b3fedf8ec4b980cd7b9e31fa4703d81438166
diff --git a/ui/currentcallview.ui b/ui/currentcallview.ui
index adbf923..32a3f5a 100644
--- a/ui/currentcallview.ui
+++ b/ui/currentcallview.ui
@@ -335,6 +335,7 @@
                 <property name="width-request">42</property>
                 <property name="height-request">42</property>
                 <property name="has_tooltip">True</property>
+                <property name="relief">normal</property>
                 <property name="tooltip-text" translatable="yes">Adjust outgoing video quality (bit/s)</property>
                 <property name="image">image_quality</property>
                 <property name="adjustment">adjustment_quality</property>