Site updates, features, and fixes

We switched our solution for storing the Last Visitor Location from Edge Config to Vercel KV, which is more cost-effective when you're writing a value as often as you're reading it. Thanks to Nanda and Maxime for the rec.

Other updates:

• Added this changelog to document updates
• Added an additional last visitor look-up to the root server component, so it's not blank before the client-side hook fetches the latest value

We're live. We broke ground on this site over a year ago, chipping away amidst client work and diving further into code for each widget. Next.js introduced the app directory during this time and it's been a fun experiment to keep the site aligned with each new feature as it ships.

Stay tuned for a deeper dive into building the site.