Simplify /community page use

[dholbach]

Right now, the Community page is a bit of a wall of text, which buries a lot of good info, and takes you back to GitHub for some of the teams. It'd be nice if we had a bit of a /community space, where you can more easily navigate between the teams and community info.

[h20220025]

hey @dholbach I am interested in resolving this issue, I am looking forward to work in this field.

[dholbach]

@h20220025 Super - thanks a lot. Let us know when you need help.

[dholbach]

It'd be great to list the following in separate sections (instead of a wall of text) and incorporate info from https://fluxcd.io/community/ and pages linked from there:

• meeting information: how to join, upcoming meetings, how to subscribe
• upcoming other events, CFPs, info about the event team
• flux contributor ladder
• other teams and activities

Anything else that's missing and we should highlight?

@vanessaabankwah @staceypotter @scottrigby