Fix typing indicator causing markAllMessagesAsRead

Move the typing indicator out of the listView header so it doesn't resize the view when appearing and disappearing causing all messages to be marked as read

BUG: 457666

src/qml/Page/RoomPage.qml

@@ -429,7 +429,7 @@ Kirigami.ScrollablePage {
             UserDetailDialog {}
         }
 
-        header: TypingPane {
+        TypingPane {
             id: typingPane
             visible: !loadingIndicator.visible && currentRoom && currentRoom.usersTyping.length > 0
             labelText: visible ? i18ncp(
@@ -438,6 +438,7 @@ Kirigami.ScrollablePage {
                 currentRoom.usersTyping.map(user => user.displayName).join(", ")
             ) : ""
             anchors.left: parent.left
+            anchors.bottom: parent.bottom
             height: visible ? implicitHeight : 0
             Behavior on height {
                 NumberAnimation {
@@ -448,7 +449,6 @@ Kirigami.ScrollablePage {
             }
             z: 2
         }
-        headerPositioning: ListView.OverlayHeader
 
         function goToEvent(eventID) {
             const index = eventToIndex(eventID)