🔧 chore: add eslint and prettier setup

Author: riquixote

.eslintrc.json

@@ -0,0 +1,28 @@
+{
+  "env": {
+    "es2021": true,
+    "node": true,
+    "jest": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "airbnb-base",
+    "airbnb-typescript/base"
+  ],
+  "overrides": [],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module",
+    "project": [
+      "./tsconfig.json"
+    ]
+  },
+  "plugins": [
+    "@typescript-eslint"
+  ],
+  "rules": {
+    "@typescript-eslint/no-unused-vars": "error"
+  }
+}