[BUGFIX] Improve layout of Install Tool with long lines

There might be situation where very long 'words' (line text without
spaces) are rendered in System environment check and that leads to some
visual issues.

As a solution apply a CSS rule to break the text.

Change-Id: Ic096a6a81052f42787cea93a88e05665b50dce5e
Resolves: #55120
Releases: 6.2
Reviewed-on: https://review.typo3.org/26937
Reviewed-by: Marcin S?gol
Tested-by: Marcin S?gol
Reviewed-by: Benjamin Rau
Tested-by: Benjamin Rau
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters