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`

updates.config.ts

@@ -5,5 +5,6 @@ export default {
     '@mcaptcha/vanilla-glue', // breaking changes in rc versions need to be handled
     'cropperjs', // need to migrate to v2 but v2 is not compatible with v1
     'tailwindcss', // need to migrate
+    '@eslint/json', // needs eslint 10
   ],
 } satisfies Config;