feat(client): use chrono for game and action times

feat!(client): replace gamestate consts with enums

fix(client): remove old comment

feat!(client): get in-game, and see some details

feat(client): something to browse in browse

feat(client): save games fetched to memory

WIP(client): browsing and related call events

feat(client): init browse view

feat(client): functional login and register

feat: basic login and register windows

feat: init menu