fs-more v0.8.0

This is a small bug fix and refactoring release.

Changed

• The MSRV for fs-more has been dropped from 1.77 to 1.74.1.
• The documentation has received some improvements, mostly typo fixes and rewording.

Fixed

• Fixed copy_directory and copy_directory_with_progress incorrectly handling relative symlink destinations,
  erroneously classifying them as broken symlinks.

Removed

• Removed unused DirectoryError error type.

Related issues / PRs:

• #3

Full Changelog: v0.7.1...v0.8.0