[BUGFIX] Avoid showing password on MacBook touch bar in backend forms

The auto suggest feature of MacBook's touch bar shows information of
just entered passwords when editing a record containing a password
field in backend forms. The behavior only occurs when Safari is used
as client and touch bar word completion is activated.

Resolves: #88286
Releases: master, 9.5, 8.7
Change-Id: I588a6edcfc34c403dc9f042adbeca2c711512228
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/60678


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>