Use a Loader instead of StackView for pageStack

src/qml/Pages/EditAccount/EditAccount.qml

@@ -42,7 +42,7 @@ HPage {
 
             Layout.maximumWidth: Math.min(parent.width, 640)
             Layout.preferredWidth:
-                pageStack.isWide ? parent.width : avatarPreferredSize
+                pageLoader.isWide ? parent.width : avatarPreferredSize
 
             Layout.preferredHeight: childrenRect.height
 

src/qml/Pages/EditAccount/Encryption.qml

@@ -24,7 +24,7 @@ HColumnLayout {
             "rooms can be exported to a passphrase-protected file.%1" +
             "You will then be able to import this file in another " +
             "Matrix client."
-        ).arg(pageStack.isWide ? "\n" :"\n\n")
+        ).arg(pageLoader.isWide ? "\n" :"\n\n")
 
         Layout.fillWidth: true
         Layout.margins: currentSpacing

src/qml/Pages/EditAccount/Profile.qml

@@ -46,7 +46,7 @@ HGridLayout {
     }
 
     columns: 2
-    flow: pageStack.isWide ? GridLayout.LeftToRight : GridLayout.TopToBottom
+    flow: pageLoader.isWide ? GridLayout.LeftToRight : GridLayout.TopToBottom
     rowSpacing: currentSpacing
 
     Component.onCompleted: nameField.field.forceActiveFocus()

src/qml/Pages/SignIn.qml

@@ -41,7 +41,7 @@ HPage {
                         (rememberAccount.checked ? "add": "delete"),
                         [data]
                     )
-                    pageStack.showPage(
+                    pageLoader.showPage(
                         "EditAccount/EditAccount", {userId: data}
                     )