Fix: Article draft not saved when adding an image to existing content…

…- EXO-75826 - Meeds-io/meeds#2649 (#336)

Before this change, editing an article by adding an image to its content
did not trigger the auto-save action. This issue occurred due to an
incorrect comparison of the article content in the isSameContent method,
which only compared the first level of HTML nodes. This change improves
the content comparison logic, resolving the issue

content-webapp/src/main/webapp/vue-app/news-activity-composer-app/components/ContentRichEditor.vue

@@ -145,9 +145,7 @@ export default {
       }
     },
     'article.content': function() {
-      if (!this.isSameArticleContent()) {
-        this.autoSave();
-      }
+      this.autoSave();
     },
     postingNews() {
       this.$refs.editor.setPublishing(this.postingNews);
@@ -187,7 +185,7 @@ export default {
                               && this.article.publicationState !== 'draft');
     },
     articleNotChanged() {
-      return this.originalArticle?.title === this.article.title && this.isSameArticleContent()
+      return this.originalArticle?.title === this.article.title && this.originalArticle?.content === this.article.content
                                                                 && !this.propertiesModified;
     },
     propertiesModified() {
@@ -821,9 +819,6 @@ export default {
         return urlParams.get(paramName);
       }
     },
-    isSameArticleContent() {
-      return this.$noteUtils.isSameContent(this.article.content, this.originalArticle.content);
-    },
     refreshTranslationExtensions() {
       this.editorExtensions = extensionRegistry.loadExtensions('contentEditor', 'translation-extension');
     },