feat: anchor links (#1765)

* feat: add heading extension with unique ID support and scroll functionality
* Added unique id for heading
* remove baseUrl heading storage
* move heading to extensions package
* WIP
* support anchors in mentions
* enhance scrolling functionality
* nodeId function
* fix nanoid import
* Bring unique-id extension local
* fixes
* fix internal link scroll in public pages
* add unique id server side
* rename mention anchor to anchorId
* capture first anchorId on paste

---------

Co-authored-by: Romik <40670677+RomikMakavana@users.noreply.github.com>

apps/client/src/features/editor/components/common/editor-paste-handler.tsx

@@ -34,7 +34,9 @@ export const handlePaste = (
       return false;
     }
 
-    createMentionAction(url, view, pos, creatorId);
+    const anchorId = match[6] ? match[6].split('#')[0] : undefined;
+    const urlWithoutAnchor = anchorId ? url.substring(0, url.indexOf("#")) : url;
+    createMentionAction(urlWithoutAnchor, view, pos, creatorId, anchorId);
     return true;
   }