More intuitive "Move sound"

[Tom4nt]

This action is replaced with the following layout:

- Label with text: "The audio file is:"
- Dropdown with options: "Untouched", "Moved to...", "Copied to..."
- Folder Selector (only shows if "Untouched" is not selected)

The chosen option and destination folder are saved after adding the sound. The destination can be changed in the settings.
To avoid visual clutter for new users, all of this is under an "Advanced" expandable section.