🎉 add custom eslint-config

Author: casperiv0

.eslintrc.json

@@ -0,0 +1,13 @@
+{
+  "env": {
+    "es2021": true,
+    "node": true
+  },
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "@casper124578/eslint-config"],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": ["@typescript-eslint"]
+}