vscode workspace settings.json

ref #1

.vscode/settings.json

@@ -0,0 +1,12 @@
+{
+    "editor.formatOnSave": true,
+    "typescript.format.enable": true,
+    "typescript.preferences.quoteStyle": "single",
+    "[json]": {
+        "editor.defaultFormatter": "vscode.json-language-features"
+    },
+    "prettier.enable": false,
+    "[typescript]": {
+        "editor.defaultFormatter": "vscode.typescript-language-features"
+    }
+}