WIP: Allow `publish` handle files with filenames separated by spaces

[yapinxxx]

Allow the publish command to handle files with filenames separated by spaces in the _draft folder.

What does it do?

The update enables filenames to include spaces in the _draft folder. However, the source code modifies the original filename(data.slug) and then incorrectly compares it with the filenames in the _draft folder, leading to erroneous results.