Merge pull request #140 from bertdeblock/use-mjs-for-stylelint-config-file

Use an `.mjs` file for configuring Stylelint

Author: NullVoxPopuli

files/.stylelintrc.cjs files/.stylelintrc.mjsfiles/.stylelintrc.cjs renamed to files/.stylelintrc.mjs

@@ -1,5 +1,3 @@
-'use strict';
-
-module.exports = {
+export default {
   extends: ['stylelint-config-standard'],
 };