Fix project metadata accessor

app/views/layouts/nav/projects_dropdown/_show.html.haml

+- project_meta = { id: @project.id, name: @project.name, namespace: @project.name_with_namespace, web_url: @project.web_url, avatar_url: @project.avatar_url } if @project&.persisted?
 .projects-dropdown-container
   .project-dropdown-sidebar
     %ul
@@ -11,4 +12,4 @@
         = link_to explore_root_path do
           = _('Explore projects')
   .project-dropdown-content
-    #js-projects-dropdown{ data: { user_name: current_user.username, project: ({ id: @project.id, name: @project.name, namespace: @project.name_with_namespace, web_url: @project.web_url, avatar_url: @project.avatar_url } if @project.present?) } }
+    #js-projects-dropdown{ data: { user_name: current_user.username, project: project_meta } }