Update JS deps, remove knip, misc tweaks (#36499)

- Update all JS deps
- Enable a few more stylelint stylistic rules and fix issues
- Remove knip, it raised another false-positive, this tool is not worth
it when you have to babysit it like that
- Exclude @eslint/json from updating as it requires unreleased eslint 10
([ref](https://github.com/eslint/json/issues/207))
- Update labeler config for new eslint filenames
- Adjust `make help` output
- Add type checking in `stylelint.config.ts`

.github/labeler.yml

@@ -84,9 +84,9 @@ docs-update-needed:
 topic/code-linting:
   - changed-files:
       - any-glob-to-any-file:
-          - ".eslintrc.cjs"
           - ".golangci.yml"
           - ".markdownlint.yaml"
           - ".spectral.yaml"
           - ".yamllint.yaml"
+          - "eslint*.config.*"
           - "stylelint.config.*"