[site] add version string to css when building (#8993)
[site] add version string to css when building (#8993)

* wip

* wip

* wip

* wip

* wip

* fix
cseed/hail,danking/hail,cseed/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,cseed/hail,danking/hail,cseed/hail,hail-is/hail,hail-is/hail,hail-is/hail,danking/hail,danking/hail,hail-is/hail,cseed/hail,danking/hail,danking/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail