Persist games into a DB

[thetanav]

Let's create a simple postgres table + Prisma for ORM which stores all the game information

1. Whenever a new game is started, create an entry in the game table
2. As the users make moves, store it in a moves table which has a foreign key to the game table
3. Add ids to every created game and add a new event that let's users re-join a game with a given id if their wifi went down/ws conn reset
4. If a user wants to join a game and there is no in memory Game object for it, recover the game from the DB and put it back in memory