Fix various qml warnings

src/app/qml/AccountSwitchDialog.qml

@@ -61,10 +61,10 @@ Kirigami.Dialog {
             }
 
             onClicked: {
+                root.close();
                 ((root.QQC2.ApplicationWindow.window as Kirigami.ApplicationWindow).pageStack as Kirigami.PageRow).pushDialogLayer(Qt.createComponent('org.kde.neochat.login', 'WelcomePage'), {}, {
                     title: i18nc("@title:window", "Login")
                 });
-                root.close();
             }
             Keys.onUpPressed: {
                 accountView.currentIndex = accountView.count - 1;

src/app/qml/EditStateDialog.qml

@@ -39,7 +39,7 @@ Kirigami.Page {
             icon.name: "document-edit"
             onTriggered: {
                 root.room.setRoomState(root.type, root.stateKey, sourceTextArea.text);
-                root.closeDialog();
+                root.Kirigami.PageStack.closeDialog();
             }
             enabled: QmlUtils.isValidJson(sourceTextArea.text)
         }

src/app/qml/ManualRoomDialog.qml

@@ -72,9 +72,9 @@ Kirigami.Dialog {
                     return null;
                 }
                 if (isAlias()) {
-                    return root.connection.roomByAlias(text);
+                    return root.connection.roomByAlias(text) as NeoChatRoom;
                 } else {
-                    return root.connection.room(text);
+                    return root.connection.room(text) as NeoChatRoom;
                 }
             }
 

src/app/qml/QrScannerPage.qml

@@ -55,10 +55,10 @@ Kirigami.Page {
         formats: Prison.Format.QRCode | Prison.Format.Aztec
         onResultChanged: {
             if (result.text.length > 0 && result.text != scanner.previousText) {
+                root.Kirigami.PageStack.closeDialog();
                 RoomManager.resolveResource(result.text, "qr");
                 scanner.previousText = result.text;
             }
-            root.closeDialog();
         }
         videoSink: viewFinder.videoSink
     }

src/app/qml/ShareDialog.qml

@@ -27,7 +27,7 @@ Kirigami.Page {
 
     QQC2.Action {
         shortcut: 'Escape'
-        onTriggered: root.closeDialog()
+        onTriggered: Kirigami.PageStack.closeDialog()
     }
 
     Notification {
@@ -53,20 +53,16 @@ Kirigami.Page {
         model: root.model
         anchors.fill: parent
         onStateChanged: {
+            root.Kirigami.PageStack.closeDialog();
             if (state === Purpose.PurposeJobController.Finished) {
                 if (jobView.job?.output?.url?.length > 0) {
                     sharingSuccess.text = i18nc("@info", "Shared url for image is <a href='%1'>%1</a>", jobView.job.output.url);
                     sharingSuccess.sendEvent();
                     Clipboard.saveText(jobView.job.output.url);
                 }
-                root.closeDialog();
             } else if (state === Purpose.PurposeJobController.Error) {
                 // Show failure notification
                 sharingFailed.sendEvent();
-                root.closeDialog();
-            } else if (state === Purpose.PurposeJobController.Cancelled) {
-                // Do nothing
-                root.closeDialog();
             }
         }
     }

src/app/supportcontroller.h

@@ -8,6 +8,8 @@
 class SupportContact
 {
     Q_GADGET
+    QML_NAMED_ELEMENT(supportContact)
+    QML_UNCREATABLE("")
 
     Q_PROPERTY(QString role MEMBER role)
     Q_PROPERTY(QString matrixId MEMBER matrixId)