✏️(project) fix typo

Fix and improve typos in the codebase.

src/backend/core/api/viewsets.py

@@ -404,7 +404,7 @@ class DocumentViewSet(
 
         Example:
         - Ascending: GET /api/v1.0/documents/?ordering=created_at
-        - Desceding: GET /api/v1.0/documents/?ordering=-title
+        - Descending: GET /api/v1.0/documents/?ordering=-title
 
     ### Filtering:
         - `is_creator_me=true`: Returns documents created by the current user.

src/backend/core/models.py

@@ -747,7 +747,7 @@ class Document(MP_Node, BaseModel):
         for ancestor in ancestors_links:
             links_definitions[ancestor["link_reach"]].add(ancestor["link_role"])
 
-        return dict(links_definitions)  # Convert defaultdict back to a normal dict
+        return dict(links_definitions)  # Convert default dict back to a normal dict
 
     def compute_ancestors_links(self, user):
         """