windows: fix callStateChanged handling

Refs #72789

Change-Id: I2d99c0544513a885d05530247681587211059c10
diff --git a/callwidget.ui b/callwidget.ui
index 1aaf23d..d8b657f 100644
--- a/callwidget.ui
+++ b/callwidget.ui
@@ -240,6 +240,12 @@
      </item>
      <item alignment="Qt::AlignHCenter">
       <widget class="QLabel" name="callStateLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
        <property name="text">
         <string>Call State :</string>
        </property>