fix: dev:shell missing dependency

Dev:shell does not build without browserslist-config.

Author: arbrandes

package-lock.json

@@ -126,6 +126,7 @@
     "webpack-remove-empty-scripts": "1.0.4"
   },
   "devDependencies": {
+    "@edx/browserslist-config": "^1.5.0",
     "@testing-library/dom": "^10.4.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.3.0",