Enforcing prettier & eslint

[mattjennings]

There is a prettier config file but it is not enforced. Running npm run pretty right now affects 230~ files and also causes some lint errors:

➜  Excalibur git:(fix/2376) ✗ npm run lint  

> excalibur@0.26.0 lint
> npm run eslint && npm run eslint:spec


> excalibur@0.26.0 eslint
> eslint "src/engine/**/*.ts"


/Users/mattjennings/dev/Excalibur/src/engine/Engine.ts
  771:15  error  Strings must use singlequote  quotes
  785:17  error  Strings must use singlequote  quotes

/Users/mattjennings/dev/Excalibur/src/engine/EntityComponentSystem/System.ts
  36:1  error  Expected indentation of 0 spaces but found 2                                   @typescript-eslint/indent
  37:1  error  Opening curly brace does not appear on the same line as controlling statement  brace-style

/Users/mattjennings/dev/Excalibur/src/engine/Graphics/Context/shader.ts
  30:1  error  Expected indentation of 4 spaces but found 2  @typescript-eslint/indent
  31:1  error  Expected indentation of 4 spaces but found 2  @typescript-eslint/indent

/Users/mattjennings/dev/Excalibur/src/engine/Graphics/Font.ts
  69:1  error  Expected indentation of 10 spaces but found 12  @typescript-eslint/indent
  70:1  error  Expected indentation of 10 spaces but found 12  @typescript-eslint/indent
  71:1  error  Expected indentation of 10 spaces but found 12  @typescript-eslint/indent
  72:1  error  Expected indentation of 8 spaces but found 10   @typescript-eslint/indent

@eonarheim suggested removing it altogether. I can make a PR to do that if that's the desire, but I'm a fan of prettier for formatting and linting should be enforced in some way too (which as far as I can tell is currently not the case, but correct me if I'm wrong).

What are your thoughts on setting up something like husky to enforce linting (and prettier if desired) with precommit hooks?

[github-actions]

This issue hasn't had any recent activity lately and is being marked as stale automatically.

[eonarheim]

@mattjennings Implemented! #3015