current_results['apps'] was not being used anywhere.
Make are_results_available() check more specific, and to align with what is
stored in the database.
Tests:
- Run full diagnostics and check the results.
- Restart plinth, and check that the diagnostic results are loaded from the
database.
Helps: #2410
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>