Options Menu - Set "Save Incomplete Torrents" to Use Relative Paths

[ghost]

I thought qBitTorrent was bugging out, until I realized that I had to turn off this option.

I wasn't sure why "Set Location" wasn't being used, and this option was the cause.

The "Save Incomplete Torrents" should use a relative path, to avoid confusion, and because it makes far more sense overall, over having one hard coded, fixed path.

qBitTorrent also failed to properly update its settings, I had to restart the entire torrent client, a notification should be added for settings which require a restart before they can be applied.