rename gateway to client hub

upd & change config to /hub hub urls

Merge branch 'bevy_rewrite' of https://gitlab.com/starkingdoms.tk/starkingdoms.tk into bevy_rewrite

HMR for CSS, update deps on twite

add license and config system

change footer text to say Starkingdoms Client

prerelease server warning

redo whole protocol, client does something, old client gone

bevy_twite is having some serious doing-things issues

gateway connection

client main page ui