Add more detailed setup information to the docs README.

* fix: counts graphemes instead of code units

* test: add more tests

* test: add more valid tests

* docs: mention about grapehemes

* fix: first check if string is ASCII

* fix: use regex

* Update docs/src/rules/id-length.md

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

* fix: add `max: 1` to valid tests

* fix: add tests for Variation Selectors

* Update tests/lib/rules/id-length.js

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

* Update tests/lib/rules/id-length.js

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

* docs: typos in comments/JSDocs

* fix: bad CSS position value rekative

* fix: UK spelling of behavior for ScrollOption

Bumps [actions/stale](https://github.com/actions/stale) from 5 to 6.
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](actions/stale@v5...v6)

---
updated-dependencies:
- dependency-name: actions/stale
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* do not use `gitignoreToMinimatch` on `--ignore-pattern`

* remove .eslintignore lookup

* remove flat-eslint tests that assume .eslintignore lookup

* remove --ignore-path CLI option

* remove ignorePath contructor option

* update docs and jsdoc

* do not use gitIgnoreToMinimatch on ignorePatterns constructor option

* docs: Conflicting fixes

Provide additional documentation on conflicting fixes.

Fixes #13721

* Update docs/src/developer-guide/working-with-rules.md

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

* chore: Rename CODEOWNERS

* chore: delete CODEWONERS

* feat: Pass --max-warnings value to formatters

Fixes #14881

* Make formatter docs wording consistent

Originally suggested by @fasttime in
#16348 (comment).

* Update LoadedFormatter and FormatterFunction typedefs

Originally suggested by @fasttime in
#16348 (comment).

Internally, I define two types, `MaxWarningsExceeded` and `ResultsMeta`,
that the updated `LoadedFormatter` and `FormatterFunction` types can
use. I'm then able to reuse the `ResultsMeta` type instead of the
generic `Object` type in `ESLint` and `FlatESLint`'s `format` wrapper
functions.

Externally in the Node.js API docs, I describe the new second argument
to `LoadedFormatter`'s `format` method inline rather than separately
documenting the new types.

While working on this, I noticed that `FlatESLint` is using the
pre-PR #15727 `Formatter` type rather than `LoadedFormatter` and
`FormatterFunction`. I'll fix that in a follow-up PR to keep this PR
scoped to passing `maxWarningsExceeded` info.