feat: migrate to bun runtime and update dependencies

frontend/package.json

@@ -14,6 +14,10 @@
     "typescript": "^4.0.0",
     "@types/react": "^18.0.0",
     "@types/react-dom": "^18.0.0",
-    "bun-types": "^0.1.0"
-  }
+    "bun-types": "^0.1.0",
+    "@types/bun": "latest"
+  },
+  "module": "src/index.tsx",
+  "type": "module",
+  "private": true
 }