Fix #4781: Danbooru Javascript object is broken.

Downgrade Webpack from 5.28.0 to 5.26.3. Breakage was introduced at
5.27.0. It's unclear if this is a regression of issue 12742 in Webpack
or if we're doing something else wrong.

hxxps://github.com-webpack-webpack-issues-12742
hxxps://github.com-webpack-webpack-issues-12851

package.json

@@ -48,6 +48,9 @@
     "stylelint-config-standard": "^20.0.0",
     "webpack-dev-server": "^3.11.2"
   },
+  "resolutions": {
+    "webpack": "5.26.3"
+  },
   "scripts": {
     "eslint-all": "yarn run eslint --plugin eslint-plugin-ignore-erb --ext .js,.js.erb app/javascript/src/javascripts",
     "stylelint-all": "yarn run stylelint 'app/javascript/src/styles/**/*.scss'"