Gui: support toolbar drag and drop to status bar and menu bar (#13571)

* Gui: support toolbar drag and drop to status bar and menu bar

Closes FreeCAD/FreeCAD#12979

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Gui: improve toolbar handling in status and menu bar

* Gui: fix workbench tab bar orientation in status or menu bar

* Gui: remove workbench toolbar position settings

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/Mod/Tux/PersistentToolbarsGui.py

@@ -66,7 +66,7 @@ def onRestore(active):
 
         isConnected(i)
 
-        if i.objectName() and not i.isFloating():
+        if i.objectName() and i.parentWidget() == mw and not i.isFloating():
             toolbars[i.objectName()] = i
         else:
             pass