refactor: use Supabase for events and projects data

[syncopascual]

Closes issue #160 by fetching data for events and projects from Supabase.

Implementation Notes

• Edited models to match with the Supabase schema
• Edited index.ts files for projects and events
• Supabase
  • transferred old data from JSON to Supabase
  • transferred data from PR feat(data): add events #154 to Supabase

Misc. Notes

• When navigating to /people, /projects, and /events there's a slight rendering delay that happens prolly due to the data being fetched from Supabase? Instead of navigating to the page first and then the page being populated with cards as the data is fetched, the page takes a bit to load for a split second, which might feel bad especially on a worse internet connection.

[ehrelevant]

LGTM!! Though yeah, we will have to investigate what can be done about the initial load times, since my guess is as good as yours at the moment.

P.S: Don't forget to set up commit signing.

[ehrelevant]

Actually, wait, you mentioned "Instead of navigating to the page first and then the page being populated with cards as the data is fetched, the page takes a bit to load for a split second..." On my end, the page load is very fast, but it takes a while for the cards to load (which is somewhat expected, albeit could be improved). Was this what you were talking about, or was it something else?