feat: impl Eq on ConfigFileJson

[nayeemrmn]

I might be refactoring how deno/didChangeDenoConfiguration works so it's more sensible, needs this.

[lucacasonato]

I wonder if it's actually this simple, because many config files, even if they are textually different, are semantically identical. Take for example exclude: null vs exclude: []

[nayeemrmn]

Currently we just do it on file changes, that behaviour is fine. I just noticed this was a missing impl considering it's a basic wrapper of serde's Value, and you'd have to serialize it to a string to compare. It's on ConfigFileJson rather than ConfigFile so there's no confusion.

[lucacasonato]

Ah ok

[dsherret]

LGTM