+ added entry in the Options > View
+ changed sfxlo-SidebarToolBox to sfxlo-NotebookbarToolBox
  in the Notebookbar ui files

Change-Id: Id5719953be9830b650af96d54e63936c553cda74
Reviewed-on: https://gerrit.libreoffice.org/28169Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>