Allow file shuttling between main and work profiles

[alanbjoseph]

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

Allowing transfer of files between the main profile and the work profile.
For example: if using the Shelter app for creating a work profile, there is a feature called file shuttling that allows transfer of files between profiles.
This feature does not work with Fossify File Manager.

Why do you want this feature?

For obvious reasons: to share files between the main profile and the work profile.
Unlimited use cases.

Additional information

It works in the default android file manager, but that is the google built file manager.
A working implementation of this feature would mean users would switch to fossify who couldn't because of this reason.