[BUGFIX] dataTables: Avoid sending cookie-data too often

All core-modules currently using jQuery-dataTables are
called through mod.php. So by adding that to the
cookie-path we can at least prevent sending those cookies
with requests like JS/CSS/images.

Change-Id: Ia9ea30e8967564572c7104600eb8dcc67647382d
Resolves: #52934
Releases: 6.2, 6.1, 6.0
Reviewed-on: https://review.typo3.org/25344
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters