Refactor Linode configuration and update WireGuard settings

- Renamed SSH match block from 'vps' to 'linode' in jawz.nix for clarity.
- Updated IP addresses in toggles.nix and other configuration files to reflect the new Linode setup.
- Removed deprecated fail2ban configuration from linode's configuration.nix.
- Adjusted WireGuard interface settings to use the correct IP for linode.
- Cleaned up hardware configuration by removing unnecessary GRUB loader settings.
- Updated secrets management in wireguard.yaml to streamline key handling.

hosts/linode/configuration.nix

@@ -9,6 +9,7 @@
     ./hardware-configuration.nix
     ./wireguard-linode.nix
     ../../config/base.nix
+    inputs.nixos-generators.nixosModules.linode
   ];
   my = import ./toggles.nix { inherit config inputs; } // {
     nix.cores = 2;
@@ -29,11 +30,6 @@
       KbdInteractiveAuthentication = false;
     };
   };
-  security.fail2ban = {
-    enable = true;
-    maxretry = 5;
-    bantime = "1h";
-  };
   environment.systemPackages = builtins.attrValues {
     inherit (pkgs)
       htop