simplify some things and remove some unused code

home/terminal/programs/tmux.nix

@@ -16,6 +16,9 @@
       set -g status-interval 5
       set -g status-right "#[fg=#25be6a]#(free -h | awk 'NR==2{print $3\"/\"$2}')"
       set -ag status-right  "#[fg=default] %a %d %b %H:%M"
+
+      set-option -g  default-terminal "xterm-256color"
+      set-option -ga terminal-overrides ",xterm-256color:Tc"
     '';
   };
 }