[BUGFIX] FAL: Removed html tags from hover in fileadmin

The hover text of folders in the fileadmin with a bold name
contained the html tags <strong></strong>.

The html tags are now removed from the title attribute.

Resolves: #64612
Releases: master
Change-Id: I3ac6d3865cfc0592fbbc6a4e0e48d1735ad58382
Reviewed-on: http://review.typo3.org/36376


Reviewed-by: Ruud Silvrants <ruudsilvrants@gmail.com>
Tested-by: Ruud Silvrants <ruudsilvrants@gmail.com>
Reviewed-by: Cedric Ziel <cedric@cedric-ziel.com>
Tested-by: Cedric Ziel <cedric@cedric-ziel.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>