Revert "chore: fix npm start error in Gitpod"

This reverts commit 978226fb13.

package.json

@@ -287,7 +287,6 @@
     "stylelint-order": "^5.0.0",
     "theme-switcher": "^1.0.2",
     "typescript": "~4.6.2",
-    "webpack": "^4.46.0",
     "webpack-bundle-analyzer": "^4.1.0",
     "xhr-mock": "^2.4.1",
     "yaml-front-matter": "^4.0.0"