build: add eslint prettier plugin

.eslintrc.cjs

@@ -3,13 +3,15 @@ module.exports = {
         "node": true,
         "es2021": true
     },
-    "extends": "eslint:recommended",
+    "plugins": ["prettier"],
+    "extends": ["eslint:recommended", "plugin:prettier/recommended"],
     "overrides": [
     ],
     "parserOptions": {
         "ecmaVersion": "latest",
         "sourceType": "module"
     },
     "rules": {
+        "prettier/prettier": "error",
     }
 }

.prettierrc.cjs

@@ -0,0 +1,3 @@
+module.exports = {
+    trailingComma: "none"
+}

.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+}

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "editor.codeActionsOnSave": {
+    "source.fixAll.eslint": true
+  }
+}