UX: fix behavior with lists scrolling offscreen

Fixes behavior introduced in Qt where flickables (list) can scroll
infinitely off screen. Temporary fix to have more polished feel to
the app. Functionality to have a soft overscroll is supposedly fixed
in Qt 6.7 onward.

Change-Id: I031c590e1a351a0fe0d0ea1ea9ed17c24c5c572b

src/app/commoncomponents/JamiFlickable.qml

@@ -40,6 +40,9 @@ Flickable {
         orientation: Qt.Horizontal
     }
 
+    // HACK: remove after migration to Qt 6.7+
+    boundsBehavior: Flickable.StopAtBounds
+
     Keys.onLeftPressed: horizontalScrollBar.decrease()
     Keys.onRightPressed: horizontalScrollBar.increase()
     Keys.onUpPressed: verticalScrollBar.decrease()

src/app/commoncomponents/JamiListView.qml

@@ -34,6 +34,9 @@ ListView {
         attachedFlickableMoving: root.moving
     }
 
+    // HACK: remove after migration to Qt 6.7+
+    boundsBehavior: Flickable.StopAtBounds
+
     Keys.onUpPressed: verticalScrollBar.decrease()
     Keys.onDownPressed: verticalScrollBar.increase()
 }

src/app/mainview/components/MessageBarTextArea.qml

@@ -82,8 +82,9 @@ JamiFlickable {
     ScrollBar.vertical.visible: text
     ScrollBar.horizontal.visible: text
 
-    boundsMovement: Flickable.StopAtBounds
-    boundsBehavior: Flickable.DragOverBounds
+    // HACK: remove after migration to Qt 6.7+
+    boundsBehavior: Flickable.StopAtBounds
+
     interactive: true
 
     function resetEditableText() {

src/app/mainview/components/MessagesResearchView.qml

@@ -30,6 +30,10 @@ ListView {
     id: root
 
     spacing: 10
+
+    // HACK: remove after migration to Qt 6.7+
+    boundsBehavior: Flickable.StopAtBounds
+
     model: SortFilterProxyModel {
         id: proxyModel
 

src/app/settingsview/SettingsSidePanel.qml

@@ -281,6 +281,9 @@ SidePanelBase {
             clip: true
             contentHeight: contentItem.childrenRect.height
 
+            // HACK: remove after migration to Qt 6.7+
+            boundsBehavior: Flickable.StopAtBounds
+
             model: getHeaders()
             delegate: ColumnLayout {
                 id: col
@@ -329,6 +332,9 @@ SidePanelBase {
                     clip: true
                     visible: isChildSelected
 
+                    // HACK: remove after migration to Qt 6.7+
+                    boundsBehavior: Flickable.StopAtBounds
+
                     model: modelData.children
                     delegate: ColumnLayout {
                         id: childCol

src/app/settingsview/components/ConnectionMonitoringTable.qml

@@ -37,6 +37,9 @@ ListView {
     spacing: 5
     cacheBuffer: 10
 
+    // HACK: remove after migration to Qt 6.7+
+    boundsBehavior: Flickable.StopAtBounds
+
     property int rota: 0
 
     header: Rectangle {
@@ -141,6 +144,9 @@ ListView {
 
             model: Count
 
+            // HACK: remove after migration to Qt 6.7+
+            boundsBehavior: Flickable.StopAtBounds
+
             delegate: RowLayout {
                 id: rowLayoutDelegate
                 height: 40