[BUGFIX] Fix JS errors in context menu

Fixes two issues: syntax error (missing semicolon),
and "Uncaught TypeError: Cannot read property 'refresh' of undefined"
when e.g. deleting a page or a file.

In file module, refresh is not needed as all actions are refreshing
the frames anyway.

Releases: master, 7.6
Resolves: #79091
Change-Id: Icfc9f786c24099c55d8e60cf30f72f035ae28231
Reviewed-on: https://review.typo3.org/51251


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>