[Showcase] Transition Examples Broken

[LovishG]

@mertsincan on the new website the Transition examples are not working:

https://primeflex.org/transitionproperty https://primeflex.org/transitionduration https://primeflex.org/transitiontimingfunction https://primeflex.org/transitiondelay

[LovishG]

This issue was raised earlier but it seems it was not fixed correctly or maybe it occured again.

Refer: https://github.com/primefaces/primeflex/issues/164