This pull request updates several stylelint-related dependencies to their latest major versions in the `package.json` file.
Dependency updates:
* Upgraded `stylelint-config-recommended-scss` from version 16.x to 17.x.
* Upgraded `stylelint-config-standard` from version 39.x to 40.x.
* Upgraded `stylelint-scss` from version 6.x to 7.x.