Steps to replicate the issue:

• Try searching when Wikidata API is slow or unresponsive
• Check application logs after errors occur

What happens?:

1. Application can hang indefinitely when Wikidata API is slow (no timeouts on HTTP requests)
2. Bare except: clauses in 9 locations catch all exceptions including SystemExit and KeyboardInterrupt, making debugging a bit difficult

What should have happened instead?:

1. HTTP requests should timeout after 10 seconds and show the proper 404 error page
2. Specific exception types should be caught (TypeError, KeyError, AttributeError, ValueError, requests.exceptions.RequestException)