[Suggestion]: allow user to specify a delay before app locks automatically

[clayt0nk]

Suggestion

On both Android and Flatpak, with Security --> Automatic Screen Lock set, the screen locks immediately whenever one navigates away to another app. That is fine as an uber-secure default. But not all environments and use-cases are the same. Personally I would like to see a user-configurable delay for that screen lock. There is very little practical difference between an immediate screen lock and a screen lock after thirty seconds, but without the latter option, filling out multiple fields in an authentication form is quite a headache with Passy.

Submission checklist

• I have specified my suggestion in the issue title