chore(client): rename sdbclient to client

feat(sdbclient): adhere to new API responses

feat!(sdbclient): change to iyes_loopless states

feat!(sdbclient): handle new error format

chore(sdbclient): update deps

Finish register/login, load configs on startup

Change CfgHidden to CfgDev

Move register/login to plugins, implement mostly