Add a configuration form to allow the admin to set the number of retries and the retry delay.

Problem/Motivation

The Job result on failure is set to 42 retries and 4 hours delay. It would be nice to make this configurable.

Steps to reproduce

Create a professional translation request and use the queue to process it.

Proposed resolution

Make configurable these parameters .

Remaining tasks

Add new configuration fields in Settings form.

User interface changes

Yes. Settings form.

API changes

None

Data model changes

None