chore: configure and format file

package.json

@@ -7,6 +7,7 @@
     "start": "vite",
     "build": "tsc && vite build",
     "lint": "eslint src --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
+    "format": "prettier -w .",
     "preview": "vite preview"
   },
   "dependencies": {
@@ -42,6 +43,7 @@
   },
   "prettier": {
     "singleQuote": true,
-    "printWidth": 120
+    "printWidth": 120,
+    "tabWidth": 2
   }
 }