refactor: updated chonkie & removed junk code

- Removed all references to the Serper API from the codebase, including related components, hooks, and schemas.
- Updated the `pyproject.toml` to reflect the new version of `chonkie` and other dependencies.
- Cleaned up the configuration and connector management to streamline the application.

surfsense_backend/app/tasks/podcast_tasks.py

@@ -8,13 +8,6 @@ from app.db import Chat, Podcast
 from app.services.task_logging_service import TaskLoggingService
 
 
-async def generate_document_podcast(
-    session: AsyncSession, document_id: int, search_space_id: int, user_id: int
-):
-    # TODO: Need to fetch the document chunks, then concatenate them and pass them to the podcast generation model
-    pass
-
-
 async def generate_chat_podcast(
     session: AsyncSession,
     chat_id: int,