fix(chat): Download/invite popup small issues

- make the popup centered across the whole window
- fix (and extract) the get/download link to `Constants`
- fix some memleaks

Fixes #11926

ui/app/AppLayouts/Chat/panels/EmptyChatPanel.qml

@@ -81,7 +81,7 @@ Item {
                     parent.font.underline = false
                 }
                 onClicked: {
-                    inviteFriendsPopup.open();
+                    Global.openPopup(inviteFriendsPopup)
                 }
             }
         }
@@ -95,8 +95,11 @@ Item {
         anchors.top: links.bottom
     }
 
-    InviteFriendsPopup {
+    Component {
         id: inviteFriendsPopup
-        rootStore: element.rootStore
+        InviteFriendsPopup {
+            rootStore: element.rootStore
+            destroyOnClose: true
+        }
     }
 }

ui/imports/shared/popups/InviteFriendsPopup.qml

@@ -4,9 +4,6 @@ import utils 1.0
 
 StatusModal {
     id: root
-    anchors.centerIn: parent
-
-    readonly property string getStatusText: qsTr("Get Status at https://status.im")
 
     property var rootStore
 
@@ -14,11 +11,11 @@ StatusModal {
     height: 156
 
     StatusDescriptionListItem {
-        subTitle: root.getStatusText
-        tooltip.text: qsTr("Copy to clipboard")
+        subTitle: qsTr("Get Status at %1").arg(Constants.externalStatusLinkWithHttps)
+        tooltip.text: qsTr("Copied!")
         asset.name: "copy"
         iconButton.onClicked: {
-            root.rootStore.copyToClipboard(Constants.statusLinkPrefix)
+            root.rootStore.copyToClipboard(Constants.downloadLink)
             tooltip.visible = !tooltip.visible
         }
         width: parent.width

ui/imports/shared/views/NoFriendsRectangle.qml

@@ -41,6 +41,7 @@ Item {
         id: inviteFriendsPopup
         InviteFriendsPopup {
             rootStore: noContactsRect.rootStore
+            destroyOnClose: true
         }
     }
 }

ui/imports/utils/Constants.qml

@@ -922,6 +922,7 @@ QtObject {
     readonly property string userLinkPrefix: externalStatusLinkWithHttps + '/u/'
     readonly property string statusLinkPrefix: 'https://status.im/'
     readonly property string statusHelpLinkPrefix: `https://status.app/help/`
+    readonly property string downloadLink: "https://status.im/get"
 
     readonly property int maxUploadFiles: 5
     readonly property double maxUploadFilesizeMB: 10