search bar text always white when not focused

adding before_nav_content to allo to pût a div, useful with jquery autocomplete which need a parent.

WIP #2

WIP #2

WIP #2

WIP #2

WIP #2

WIP #2

Adding credits in footer
printing warnings only once
WIP #2

WIP #2

Showing the form by default (can be overridden)
WIP #2

WIP #2

Fix CI