chore: add dist directory cleanup script

Author: Alfred-Skyblue

package.json

@@ -7,6 +7,7 @@
     "dev": "node scripts/dev.js",
     "build": "node scripts/build.js",
     "build-dts": "tsc -p tsconfig.build.json && rollup -c rollup.dts.config.js",
+    "clean": "rimraf packages/*/dist",
     "size": "run-s \"size-*\" && tsx scripts/usage-size.ts",
     "size-global": "node scripts/build.js vue runtime-dom -f global -p --size",
     "size-esm-runtime": "node scripts/build.js vue -f esm-bundler-runtime",
@@ -90,6 +91,7 @@
     "pretty-bytes": "^6.1.1",
     "pug": "^3.0.1",
     "puppeteer": "~21.1.1",
+    "rimraf": "^5.0.1",
     "rollup": "^3.26.0",
     "rollup-plugin-dts": "^5.3.0",
     "rollup-plugin-esbuild": "^5.0.0",