callactionbar: fix typo in slot name for recording state

Gitlab: #411
Change-Id: I09b18bb3f4997c38ef94067097efcc73f41b48ca

src/mainview/components/CallActionBar.qml

@@ -308,7 +308,7 @@ Control {
         function onIsModeratorChanged() { reset() }
         function onIsAudioMutedChanged() { reset() }
         function onIsVideoMutedChanged() { reset() }
-        function onRecordingVisibleChanged() { reset() }
+        function onIsRecordingChanged() { reset() }
     }
 
     function reset() {