Update JS dependencies (#17611)

- Update monaco, adapting to breaking changes
- Update dropzone, adapting to breaking changes
- Update linters, fix new issues, disable opinionated stylelint rules
- Rebuild SVGs and images
- Tested Dropzone and Monaco

Replaces: https://github.com/go-gitea/gitea/pull/17574

web_src/js/features/dropzone.js

@@ -3,6 +3,5 @@ export default async function createDropzone(el, opts) {
     import(/* webpackChunkName: "dropzone" */'dropzone'),
     import(/* webpackChunkName: "dropzone" */'dropzone/dist/dropzone.css'),
   ]);
-  Dropzone.autoDiscover = false;
   return new Dropzone(el, opts);
 }