Feature Request: Use file manager prompt to select folder for "Other Files" / "Files"

[Doomsdayrs]

Referring to #387 to how I was confused on what the "+ folder" icon did.

Instead of typing in a path, use the file manager prompt to select the folder, then prompt with a toggle for it to be read only or not

[gasinvein]

I guess this won't work for Flatseal running in flatpak. It can either use portals and get paths that are meaningless for overrides, or don't use portals and paths selectable via file picker will be limited to what Flatseal has access to (which is not much).

[rusty-snake]

Well you could use flatpak-spawn --host ..., but this would add requirements on the host system.

The following results get returned via the "Response" signal:

uris as

An array of strings containing the uris of the selected files.

_{https://docs.flatpak.org/en/latest/portal-api-reference.html#gdbus-org.freedesktop.portal.FileChooser}

Maybe that's the host path of the files?