fix(eslint-plugin): use @stylistic ruleset for formatting when not using prettier

[Killusions]

BREAKING CHANGE: The peer-dependency @stylistic/eslint-plugin has been added to eslint-config-typescript and eslint-config-angular, please install version 2.13.0 or newer.

Currently, the eslint-config only works when using prettier and eslint-config-prettier, otherwise it fails, because all formatting related rules have been moved from typescript-eslint to stylistic. This left us with two options: Disable all formatting rules or migrate. As removing all formatting rules leads to a much degraded experience for users not also using prettier, I suggest migrating to stylistic. eslint-config-prettier will still automatically disable these rules to avoid conflicts.

[spike-rabbit]

I don't see why we need this. The idea of this repo is to provide an opinion of how things should be formatted and linted.
We have prettier so we don't need stylistic/*.

So just disabling the rules is in my opinion what we should do.

If we the others feel like we should have stylistic stuff in here, then it should be a separate file and an optional peerDependency.

[Killusions]

@spike-rabbit But then we have to say we don't recommend usage without prettier, as otherwise this leads to a very much degraded experience

[timowolf]

@Killusions @spike-rabbit This is what I reported already. The overall documentation shout be sharpened and the dependencies of the different linters should be explained.

[kfenner]

We (@timowolf @Killusions @spike-rabbit @kfenner) decided to not introduce @stylistic and completely drop the styling rules from our angular and typescript lint configs.
Main reason is that we only use prettier in our own projects and if somebody else wants to use stylistic, they can introduce these rules on their own as we mainly want to promote prettier.