WIP(sdbapi): actions table

WIP(sdbapi): comment out future endpoints

feat(sdbapi): simplify verifying if a user exists

docs(sdbapi): API doc updates

fix(sdbapi): Dockerfile broke after 529726cf

WIP(sdbapi): game creation API

feat(sdbapi): replace gorm.Model with own fields

feat(sdbapi): initial testing

chore(sdbapi): update deps, testify non-indirect

feat(sdbapi): helper for getting user by email

feat!(sdbapi): change errors to apierror

WIP(sdbapi): migrate game table

WIP(sdbapi): game info API endpoint

feat: add musl compatibility

feat(sdbapi): init game management apis

docs(sdbapi): add API docs to README.md

feat(sdbclient): add states related to lobbies

fix(sdbclient): align loading screen text

chore(sdbclient): update deps

fix(sdbclient): remove lua things from playscreen