OS: Add support for Nitrux

ascii/distro/nitrux

+${c1}`:/.
+`/yo
+`/yo
+`/yo      .+:.
+`/yo      .sys+:.`
+`/yo       `-/sys+:.`
+`/yo           ./sss+:.`
+`/yo              .:oss+:-`
+`/yo                 ./o///:-`
+`/yo              `.-:///////:`
+`/yo           `.://///++//-``
+`/yo       `.-:////++++/-`
+`/yo    `-://///++o+/-`
+`/yo `-/+o+++ooo+/-`
+`/s+:+oooossso/.`
+`//+sssssso:.
+`+syyyy+:`
+:+s+-

neofetch

@@ -3065,6 +3065,11 @@ get_distro_colors() {
             ascii_file="netrunner"
         ;;
 
+        "Nitrux"*)
+            set_colors 4
+            ascii_file="nitrux"
+        ;;
+
         "NixOS"*)
             set_colors 4 6
             ascii_file="nixos"