fix: fuse_main error handling

[madjesc]

change the fuse main error handling

Description

Fix #541 Now the main function does not ignore the return code of fuse_main and uses the errno that fuse_main sets for better logging information

Type of change

Please delete items that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have confirmed my fix is effective or that my feature works