feat(statistics): split the stats between issues and PRs (#364)

* docs(only-labels): enhance the docs and fix duplicate (#341)

* docs(only-labels): remove duplicated option and improve descriptions

a bad rebase happend

* docs(readme): use a multi-line array and remove the optional column

the option column was not helpful since each value is optional
the multi-line array will allow to have a better UI in small devices and basically in GitHub too due to the max-width

* style(readme): break line for the statistics

* docs(readme): add a better description for the ascending option

* docs(action): add missing punctuation

* build(deps-dev): bump @typescript-eslint/eslint-plugin (#342)

Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 4.15.2 to 4.16.1.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.16.1/packages/eslint-plugin)

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

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

* build(deps): bump @octokit/rest from 18.3.0 to 18.3.2 (#350)

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 18.3.0 to 18.3.2.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v18.3.0...v18.3.2)

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

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

* test: add more coverage for the stale label behaviour (#352) (#15)

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

* test: add more coverage for the stale label behaviour (#352) (#17)

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

* test(refactor): use toHaveLength

* feat(statistics): split the processed issues and prs

* feat(statistics): split the new stale issues and prs

* feat(statistics): split the no longer stale issues and prs

* chore(deps): undo upgrade of dependencies

* feat(statistics): split closed issues and prs

* feat(statistics): use the word "items" when something concern both issues and prs

* feat(statistics): split more stats by issues and prs

* feat(statistics): split more stats by issues and prs (final)

* chore(index): update it

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