Export app settings

[rmj-maker]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.
• I optionally donated to support the Fossify mission.

Feature description

Some of the fossify apps like gallery support complete export of settings but no the contacts app for example. It is much easier to just import the settings on a reinstall.

Why do you want this feature?

To be able to backup the settings after setting up all toggles in the app.

Additional information

No response