Create /events and remove /clubs from the nav bar

[JTWWilson]

I think the hierarchy should be:

• /events
  • /clubs (perhaps renamed to /workshops because that's really what it is)
  • /hackathons

I think the Ball is big enough still to deserve it's own page.

The new /events page should have some examples of what our events are, what to expect from those events and when to expect them.

[LMBishop]

Probably ties in with what Sofia was going to make. Which should also be an issue on here tbh