feat(new site): a full back end update of the current website using the (modified) clean hugo theme

[lwasser]

Ok, this pr represents about a year of work, but I had to migrate everything over manually locally because I managed to make a git history mess. My apologies for this being so big.

i broke the migration work into types of work - layouts, css etc. and then also sections of the site (which i'm modifying as i go and will then add redirects.

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[willingc]

@lwasser I'm okay with YOLO for the site. Please double check that the images that are making htmlproofer grumpy are valid paths now.

[willingc]

Pulled the code down locally and it built fine with the dev server.

A few deprecation warnings but we can address in a followup PR.

Looks good. 😄 If the image links look correct to you, 🚢

[lwasser]

Ok, I'm fixing a few last broken links, and then we will go live. and ill update the event content and create the form for the ai tool project

[lwasser]

ok i've fixed bad image paths and all CI issues that look significant. Next i'll merge

then test whether the new build data update works on the new site.
then i'll remove old jekyll content in a separate pr.
then i'll get back to the real goal of updating the un event page and the volunteer page so people can better understand how to support us!!

[lwasser]

Merging this 🤞🏻 ✨

[lwasser]

and now... it's time to be terrified for the next hour 🙃