add distclean run-script

Author: shawnbot

package.json

@@ -5,7 +5,8 @@
     "start": "start-storybook -p 8000 -c .storybook",
     "storybook": "build-storybook -o build",
     "bootstrap": "lerna bootstrap --hoist",
-    "clean": "lerna clean --yes && rm -r node_modules",
+    "clean": "lerna clean",
+    "distclean": "lerna clean --yes && rm -rf node_modules",
     "diff": "lerna diff",
     "updated": "lerna updated || exit 0",
     "lint": "lerna run lint",