feat(sdbclient): adhere to new create game API

feat(sdbclient): join games

WIP(sdbclient): browse games from play screen

feat(sdbclient): finish create game ui

feat(sdbclient): change play title "Main" > "Play"

fix(sdbclient): fix typo in lobby title

feat(sdbclient): change play menu title with menu

feat!(sdbclient): scrap game management UIs

feat(sdbclient): simple runtime data handling