PLF-4862 : Top bar menus don't show sub-menus on mouse over

Fix description
* Add mouse hover action in User Menu, Administration Menu and Edit Menu
PLF-5158 : NullPointerException when click Abort button after edit layout of portal

Fix description:
* Add <page-body> tag to "RightBody" container to prohibit its deletion.
PLF-4908 : Show duplicate documents node in Navigation Management

Fix description:
* Remove the redundant Document node from the portal navigation