New search for Raku documentation page

Hi everyone,

A new search facility has been developed for the Raku documentation 
site. It would be useful to get some feedback.

The new search can be tested at 'https://new-raku.finanalyst.org'. Try 
clicking on the 'i' button next to the search panel for information.

The search interface is as close as possible to the previous interface 
(which is still in use on docs.raku.org and docs-dev.raku.org).

Please comment in the issue opened on github.com/Raku/doc-website

Several shortcuts  have been added, and feedback on which shortcuts to 
have  as defaults would be helpful. Ditto for the default values of some 
options.

Regards,

Richard Hainsworth, aka finanalyst