Delete sonobarr (ct) after migration to ProxmoxVE (#1504)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

frontend/public/json/sonobarr.json

@@ -1,40 +0,0 @@
-{
-    "name": "Sonobarr",
-    "slug": "sonobarr",
-    "categories": [
-        14
-    ],
-    "date_created": "2026-01-21",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 5000,
-    "documentation": "https://github.com/Dodelidoo-Labs/sonobarr",
-    "config_path": "/etc/sonobarr/.env",
-    "website": "https://github.com/Dodelidoo-Labs/sonobarr",
-    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/sonobarr.webp",
-    "description": "Sonobarr marries your existing Lidarr library with Last.fm’s discovery graph to surface artists you'll actually like. It runs as a Flask + Socket.IO application, ships with a polished Bootstrap UI, and includes admin tooling so folks can share a single instance safely.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/sonobarr.sh",
-            "resources": {
-                "cpu": 1,
-                "ram": 1024,
-                "hdd": 20,
-                "os": "Debian",
-                "version": "13"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": null,
-        "password": null
-    },
-    "notes": [
-        {
-            "text": "Default generated admin password is in the env file (sonobarr_superadmin_password)",
-            "type": "info"
-        }
-    ]
-}