spc is stream.place chat, in the terminal. it listens to the jetstream for any
chat records, and then compares the streamer field to the provided args. if
there are no args, then it will display all chat messages.

example: if i'm streaming on moth11.net, my did is
`did:plc:25z6ogppprfvijcnqo2fsfce` so to view my chat, do `go run .
did:plc:25z6ogppprfvijcnqo2fsfce`

if you want to see the union of alice and bob's chats, and their dids are
`did:plc:12345` and `did:plc:abcde`, then do `go run . did:plc:12345
did:plc:abcde`

pretty simple!

the colors are just random based on the user's handle, i'll probably add the
true user's color (according to the profile lexicon) at some point