Add app layer to exceptions of no-layer-public-api rule

[daniilsapa]

Resolves #55

[daniilsapa]

@illright Could you tell me how I can test Steiger locally? How do you usually do that? I tried to run turbo build and then run dist/cli.js file but got an error.

[illright]

Weird, what error did you get?

[daniilsapa]

The error occurs when you try to specify a folder that is outside the working folder. This is true for both local and distributed app builds.

Here's what it looks like

[daniilsapa]

You're welcome. Yes, I created an issue for that error