If the loading text of the login box is too large, the text exceeds the size
of the login button.

This patch allow the button to grow vertically.

Resolves: #92622
Releases: master, 10.4
Change-Id: I9aa7858fd23c5f5848657c6c029769e9fa8de179
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66554


Tested-by: Martin Kutschker <mkutschker-typo3@yahoo.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Mathias Brodala <mbrodala@pagemachine.de>
Tested-by: Torben Hansen <derhansen@gmail.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Martin Kutschker <mkutschker-typo3@yahoo.com>
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Torben Hansen <derhansen@gmail.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>