Permission module: Update legend icons monochrome vector
icons and correct lines

Resolves: #63245
Releases: master
Change-Id: I6b5a53486c8a9d162443abc07e73b221e2d94f7c
Reviewed-on: http://review.typo3.org/34519


Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>