chore: update lerna config.

Author: jaywcjlove

lerna.json

@@ -1,4 +1,4 @@
 {
   "version": "4.21.2",
-  "packages": ["themes/**", "core", "merge", "www"]
+  "packages": ["themes/**", "extensions/**", "core", "merge", "www"]
 }

package.json

@@ -11,7 +11,7 @@
     "prepare": "husky install",
     "version": "lerna version --exact --force-publish --no-push --no-git-tag-version",
     "prettier": "prettier --write '**/*.{js,jsx,tsx,ts,less,json}'",
-    "remove": "npm run clean && lerna exec \"rm -rf package-lock.json\" --scope @uiw/* --scope website",
+    "remove": "npm run clean && lerna exec \"rm -rf package-lock.json cjs esm lib\" --scope @uiw/* --scope website --scope react-codemirror-merge",
     "clean": "lerna clean --yes"
   },
   "workspaces": [