When changing domain for the app, email stops working because it retains old configuration

[eikma]

Describe the bug

After changing the URL for the ghost installation, the URL in config.production.json doesn't change, causing emails to stop working.

Context

• Hardware: VM
• YunoHost version: 11.2.11.3
• I have access to my server: Through SSH | through the webadmin | direct access via keyboard / screen | ...
• Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no

Steps to reproduce

• Install ghost app on a domain
• Change ghost app to another domain using yunohost admin panel
• The URL is changed correctly and the blog navigation is updated automatically to use the new domain, but the email configuration in config.production.json retains the old domain.

Expected behavior

Email is reconfigured to use the new domain