Default to 28 for SIGWINCH. why is apple like this

Mark unused variables as UNUSED

Fixed Teh Crash (user was NULL) and hostname == NULL

https://www.reddit.com/r/linux/comments/awtz0i/filet_v010_released_a_smol_and_fast_file_manager/ehq2s04/?context=3

Added note about FILET_OPENER to readme