Make moving files across different partitions possible by adding fallback to copy-and-delete

[babarot]

What

This PR refactors the file moving logic to use the move function, which checks if the source and destination reside on the same partition before deciding whether to perform a simple os.Rename() or fall back to a copy-and-delete approach. The move function handles the logic of ensuring the destination directory exists and correctly handles partition checks, providing a more robust and flexible solution for moving files across different filesystems.

Why

The os.Rename function is designed for file moves within the same file system. When attempting to move files across different partitions or mount points, it results in an "invalid cross-device link" error. To address this, I’ve added a fallback mechanism that uses a copy-and-delete approach when the source and destination are on different partitions. This ensures that files can still be "moved" by copying them to the new location and deleting the original, effectively simulating a move even across different file systems

fix #38