Community tile copy - "wagmi"

[saulmc]

This isn't really a bug, but I think we should change this tile to "Come say 👋 or GM!" The community kind of soured on "wagmi" as a term after arguments were made that it is exploitative (since crypto is generally zero-sum).

Alternatively we could consider more specific copy that talks about why you'd come to the Discord (e.g. developer hangouts and support). The tile currently suggests it's mostly a social place.

[jhaaaa]

Love this feedback, Saul - thank you!

We'll update this to:

Say 👋, join a dev hangout, or get support

[jhaaaa]

Implemented via https://github.com/xmtp/xmtp-dot-org/pull/102