Setup eslint. Run after prettier in lint cmd

.eslintrc

@@ -0,0 +1,21 @@
+{
+  "root": true,
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "sourceType": "module"
+  },
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"],
+  "rules": {
+    "import/extensions": 0,
+    "max-classes-per-file": 1,
+    "no-empty": [
+      2,
+      {
+        "allowEmptyCatch": true
+      }
+    ],
+    "no-promise-executor-return": 1,
+    "no-shadow": "off",
+    "no-underscore-dangle": "off"
+  }
+}