feat: Updated ddcbacklight and use wezterm by default on linux as well

misc:

Forward agent to shiro
On ssh-ing to ryu have HYPRLAND_INSTANCE_SIGNATURE set from hyprland instances

home/programs/ssh.nix

@@ -34,7 +34,7 @@
       shiro = {
         user = "servius";
         hostname = "shiro";
-        forwardAgent = false;
+        forwardAgent = true;
       };
     };
     serverAliveInterval = 120;