Would be nice to have a simple Android widget (1x1 or 2x1) with only two buttons: "Add new card" and "Search". The purpose of these buttons is self-explanatory.
It would be especially useful if the "add new" button won't require to enter the password to quickly generate and save a new password. I understand that it is not possible to write to the database before entering the password but such "quick passwords" could be temporarily saved in a local cache and merged to the main database only when the main app is opened.