Description

There should be a way to read .yaml config files for this kind of configuration, but we are not currently doing so. Instead, we rely on a default set in app.js.

Desired behavior/Acceptance criteria (returned value, expected error, performance expectations, etc.)

• separate config from code

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Back-end_Task/Bug_completion_checklist