Enable id-denylist and id-length in base config

[rekmarks]

This modifies the base config to forbid specific identifier names (e.g. err, cb) and variable and function names shorter than two characters (with some exceptions).

[Gudahtt]

Well... this seems like it would have a lot of violations 🤔 Has this been tested on the extension or controllers repo?

[rekmarks]

@Gudahtt a couple of tests:

@metamask/controllers (not bad at all)
eslint-result-controllers.txt

✖ 62 problems (62 errors, 0 warnings)

metamask-extension (:sweat_smile:, after adding an additional exception for t)
eslint-result-extension.txt

✖ 857 problems (857 errors, 0 warnings)

[mcmire]

I think this is a good idea. Too bad we can't configure ESLint to autofix these for us.

[mcmire]

I'm in favor of this. This rule can be disabled in the extension until the violations can be gone through.

[Gudahtt]

I am in favour of this as well. I can approve once v10 has been published. Better to keep this for the v11 release to avoid making the v10 update too challenging.