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/codeeditor.js

@@ -45,7 +45,7 @@ function getLanguage(filename) {
 function updateEditor(monaco, editor, filename, lineWrapExts) {
   editor.updateOptions(getFileBasedOptions(filename, lineWrapExts));
   const model = editor.getModel();
-  const language = model.getModeId();
+  const language = model.getLanguageId();
   const newLanguage = getLanguage(filename);
   if (language !== newLanguage) monaco.editor.setModelLanguage(model, newLanguage);
 }

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);
 }