Hook up Sentry for error reporting

[Gocnak]

NestJS will specifically need https://www.npmjs.com/package/@ntegral/nestjs-sentry Angular has its own official guide: https://docs.sentry.io/platforms/javascript/guides/angular/

We're on Sentry for error reporting for the game and should absolutely use it for the front and backend. There's even performance checking, too.

We should also update our main readme to say we utilize it, and plop their logo in: https://sentry.io/branding/

[tsa96]

Module is in place, but not tested live - check this out after prod

[tsa96]

exception-hander.filter.ts has some weird looking logic - it appears that all errors are going to get set to Sentry when in prod. Fix that when working on this!

[tsa96]

Almost done, just need to get sourcemaps working.