fix: TOC not rendered in non-seamless-editing mode

app/components/Editor.tsx

@@ -276,7 +276,7 @@ function Editor(props: Props, ref: React.RefObject<SharedEditor> | null) {
 
   const handleRefChanged = React.useCallback(
     (node: SharedEditor | null) => {
-      if (node && !previousHeadings.current) {
+      if (node) {
         updateHeadings();
       }
     },

app/scenes/Document/components/Header.tsx

@@ -205,9 +205,7 @@ function DocumentHeader({
           isMobile ? (
             <TableOfContentsMenu headings={headings} />
           ) : (
-            <DocumentBreadcrumb document={document}>
-              {!isEditing && toc}
-            </DocumentBreadcrumb>
+            <DocumentBreadcrumb document={document}>{toc}</DocumentBreadcrumb>
           )
         }
         title={