chore: add rollup-plugin-visualizer

Author: sharevb

package.json

@@ -441,6 +441,7 @@
     "jsdom": "^22.0.0",
     "less": "^4.2.2",
     "prettier": "^3.0.0",
+    "rollup-plugin-visualizer": "^7.0.1",
     "semver": "^7.5.2",
     "typescript": "~5.2.2",
     "unocss": "^0.57.1",