Replace the Crossref API calls with calls to COKI

[briri]

Once we have the COKI adapter in place we should test out Crossref grant queries to that system.

We are currently calling Crossref directly and it is taking around 15-20 seconds for simple requests (e.g. funder, PI name and title). For example: https://api.crossref.org/works?sort=score&query.contributor=brooke+kaiser+piehowski&filter=type:grant,funder:10.13039/100000015,from-awarded-date:2023-01-01,until-awarded-date:2023-12-31

This is too slow for our Project/Award search on the new React pages. COKI stores the Crossref dataset locally and will likely be faster.