🔧 config: add vscode settings

Author: kazupon

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+    "eslint.validate": [
+        "javascript",
+        {"language": "typescript", "autoFix": true}
+    ],
+    "eslint.packageManager": "yarn",
+    "eslint.enable": true
+}