Tweak ESLint config

.eslintrc.json

@@ -4,8 +4,26 @@
     "browser": true
   },
   "extends": ["eslint:recommended", "plugin:unicorn/recommended", "prettier"],
+  "rules": {
+    "unicorn/no-for-loop": 0
+  },
   "parserOptions": {
     "ecmaVersion": "latest",
     "sourceType": "module"
+  },
+  "overrides": [
+    {
+      "files": ["postcss.config.js", "vite.config.js"],
+      "env": {
+        "node": true,
+        "browser": false
+      }
+    },
+    {
+      "files": ["postcss.config.js"],
+      "rules": {
+        "unicorn/prefer-module": 0
       }
     }
+  ]
+}