build an event calendar for coding.earth events

[elmariachi111]

calendar view that's SSRed and loads / switches to the current date client side.

Fetches all current meetup data from GraphCMS using the public read key for their API.

The "main" idea of events is that everybody may add her own event from a remote source. These events shouldn't be added to the GCMS backend but rather an OrbitDB. This ticket is thought for users who'd like to host an event directly on coding.earth (e.g. us ourselves)