[BUGFIX] Workspaces module: Add h1 headline with page title

In order to be consistent with the
other Web modules, the workspace
module should output the page title as
h1.

Resolves: #63209
Releases: master
Change-Id: Iac6cf837f8fee60feafa8f6e5bd34a8968b70a5c
Reviewed-on: http://review.typo3.org/34789
Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Frank Nägler <typo3@naegler.net>
Tested-by: Frank Nägler <typo3@naegler.net>