QmlDesigner: Update image in the Managing Workspaces document

This patch updates the old image to include lock the views features
in the document screenshot. Also it updates the text description to match
the change.

Fixes: QDS-11562
Change-Id: I0e573be2f0e879bf4fb62a6f5120cd0b0aafa1d0
Reviewed-by: Johanna Vanhatapio <johanna.vanhatapio@qt.io>
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Mats Honkamaa <mats.honkamaa@qt.io>

doc/qtdesignstudio/src/views/qtquick-designer.qdoc

@@ -224,6 +224,12 @@
             workspace, select it in the list.
         \li
         \li \l{Managing Workspaces}
+    \row
+        \li \inlineimage icons/lockoff.png
+        / \inlineimage icons/lockon.png
+        \li Toggles the views to locked or movable in \QDS.
+        \li
+        \li \l{Managing Workspaces}
     \row
         \li \uicontrol Share
         \li Shares the application online using Qt Design Viewer.

doc/qtdesignstudio/src/views/studio-workspaces.qdoc

@@ -14,10 +14,11 @@
     To detach views:
 
     \list
+        \li Toggle \inlineimage icons/lockon.png
+        to \inlineimage icons/lockoff.png
+        at the top toolbar.
         \li Double-click the title bar of the view.
         \li Start dragging the view to another position.
-        \li Select the \inlineimage icons/detach-group-icon.png
-            (\uicontrol {Detach Group}) button.
     \endlist
 
     You can move detached views or groups of views anywhere on the screen.
@@ -32,6 +33,11 @@
 
     To open closed views, select \uicontrol View > \uicontrol Views.
 
+    \note To lock all views, toggle
+        \inlineimage icons/lockoff.png
+        to \inlineimage icons/lockon.png
+        at the top toolbar.
+
     \section1 Saving Workspaces
 
     The changes you make to a workspace are saved when you exit \QDS.