Invalid CSS compression for transition-delay

[jcarlosroldan]

The property transition-delay: 0s is incorrectly compressed as transition-delay: 0, which is not a valid property.

As a hotfix, I replaced it with transition-delay: unset in the original code to overcome this issue.

[melloware]

This is fixed in 2.4.0 of our version of this plugin: https://github.com/primefaces-extensions/resources-optimizer-maven-plugin