support other versions of ksh

The KDE was renamed to Plasma

Small tweak to the colours used for the Feren OS Logo

Changed the blue used in the Feren OS logo as most colour schemes make the logo appear to be teal instead of blue.

Linux: Fix ASCII for Sailfish OS

To maintain backward compatibility with older SailfishOS version.

add support for kagami package manager

We are assuming that people's /etc/os-release are standard, and any distro
without it will use the "fallback" methods they have.

WM: Add support for yabai on macOS

Moved guix check below /etc/os-release check

Set nullglob for package counting

This prevents package managers showing up as having installed 1 package,
while it's actually 0.

Fix kitty font parsing when font name has whitespaces