Add a default ESLint config in framework mode

[CoolNewsGuy]

It would be nice to have one that follows the rules like the one in Next.js because it's a bit annoying to setup.

[sergiodxa]

Remix used to come with one, and they ended up deleting it, everyone has different opinions about this, and there's no React Router specific linter plugin that makes it worthy to provider a default config using that plugin.

If you find it annoying to setup, try Biome, it works without any configuration by using default settings.

[ngbrown]

I think also a minimum set of rules that the team is going to be following for documentation/code example sake would be helpful.

After migrating from Remix, I'm hit with many @typescript-eslint/no-floating-promises because lots of functions suddenly have a promise being returned. I have found other conversations asking about them, but no recommended pattern.

Maybe the recommended pattern is to disable that rule? But by including a minimum eslint set, we would know.