Devlog 3: Join page and some backend stuff

• Added join page
• Implemented basic game room exists check
• Starting to implement SQLite db structure
• Bug fixes

I spent way too long trying to figure out why my req.body.x is undefined only to figure out that body parser is not bundled with express by default…

I also did some brain storming and figured out a better way to eventually implement game logic that doesn’t require web sockets.