Update OS version from 13 to 12 in swizzin.json

Removed cleanup messages and commands from the installation script.

ct/swizzin.sh

@@ -11,7 +11,7 @@ var_cpu="${var_cpu:-2}"
 var_ram="${var_ram:-4096}"
 var_disk="${var_disk:-20}"
 var_os="${var_os:-debian}"
-var_version="${var_version:-13}"
+var_version="${var_version:-12}"
 var_unprivileged="${var_unprivileged:-1}"
 
 header_info "$APP"

frontend/public/json/swizzin.json

@@ -23,7 +23,7 @@
         "ram": 4096,
         "hdd": 20,
         "os": "Debian",
-        "version": "13"
+        "version": "12"
       }
     }
   ],

install/swizzin-install.sh

@@ -27,9 +27,4 @@ bash <(curl -sL s5n.sh)
 
 motd_ssh
 customize
-
-msg_info "Cleaning up"
-$STD apt -y autoremove
-$STD apt -y autoclean
-$STD apt -y clean
-msg_ok "Cleaned"
+cleanup_lxc