Consider giving access to the home folder

[Jacalz]

We can only open files that are accessible in the container if we are to open a file with Rymdport. There is not error showing if the user tries to open a file outside of the sandbox. We are almost giving access to the entire home folder right now and the reviewer said that it was fine to do so if I wished to when getting Rymdport added as a flatpak.

[Jacalz]

One option might be to give read access to the home folder and only write access to the downloads folder. I think I’m a fan of that idea. Would just have to disable the support for changing where files are saved.