Revert "Fixed #9201 - Update FullCalendar to v5"
Revert "Fixed #9201 - Update FullCalendar to v5"

This reverts commit 1bd444dae940252420a8ac000403c9d5e225d3c3.

primefaces/primeng,WebRota/primeng,primefaces/primeng,primefaces/primeng,WebRota/primeng,WebRota/primeng,WebRota/primeng,primefaces/primeng