build: update eslint configuration

Author: mrholek

.eslintrc.json

@@ -98,7 +98,9 @@
     "unicorn/prefer-module": "off",
     "unicorn/prefer-query-selector": "off",
     "unicorn/prefer-spread": "off",
+    "unicorn/prefer-string-raw": "off",
     "unicorn/prefer-string-replace-all": "off",
+    "unicorn/prefer-structured-clone": "off",
     "unicorn/prevent-abbreviations": "off"
   },
   "overrides": [
@@ -218,7 +220,8 @@
     },
     {
       "files": [
-        "**/*.md/*.js"
+        "**/*.md/*.js",
+        "**/*.md/*.mjs"
       ],
       "extends": "plugin:markdown/recommended-legacy",
       "parserOptions": {