#81 added NO data error message

[suprajamannava17]

Fixes #81

What was changed?

The DraftOrcaDashboard frontend, file_search_operations backend, and usecases/search_orca_data backend logic were modified to handle cases where no search terms or data are found by alerting users and returning appropriate error responses.

Why was it changed?

These changes were made to improve user experience and error handling by providing feedback when no data matches the provided search terms, ensuring the application responds gracefully.

How was it changed?

• In DraftOrcaDashboard, an alert was added for 404 responses when no data is found.
• In file_search_operations, a check was added to return an empty string if no matching search terms are found.
• In usecases/search_orca_data, error handling was added to return a NOT_FOUND response with a clear message when no content is retrieved.

Screenshots that show the changes (if applicable):