Delete nightscout (ct) after migration to ProxmoxVE (#1423)

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

frontend/public/json/nightscout.json

@@ -1,52 +0,0 @@
-{
-  "name": "Nightscout",
-  "slug": "nightscout",
-  "categories": [
-    0
-  ],
-  "date_created": "2025-01-17",
-  "type": "ct",
-  "updateable": true,
-  "privileged": false,
-  "interface_port": 1337,
-  "documentation": "https://nightscout.github.io/",
-  "website": "http://www.nightscout.info/",
-  "logo": "https://raw.githubusercontent.com/nightscout/cgm-remote-monitor/master/static/images/large.png",
-  "config_path": "/opt/nightscout/my.env",
-  "description": "Nightscout is an open source, DIY project that allows real time access to a CGM data via personal website, smartwatch watchers, or apps and widgets available for smartphones.",
-  "install_methods": [
-    {
-      "type": "default",
-      "script": "ct/nightscout.sh",
-      "resources": {
-        "cpu": 2,
-        "ram": 2048,
-        "hdd": 10,
-        "os": "debian",
-        "version": "12"
-      }
-    }
-  ],
-  "default_credentials": {
-    "username": null,
-    "password": null
-  },
-  "notes": [
-    {
-      "text": "Nightscout requires configuring `my.env` with your Mongo connection string. API_SECRET has been generated and saved to `~/nightscout.creds`.",
-      "type": "info"
-    },
-    {
-      "text": "Edit `/opt/nightscout/my.env` to configure your CGM source (Dexcom/CareLink). Then run: `systemctl restart nightscout`",
-      "type": "info"
-    },
-    {
-      "text": "Official Configuration Guide: https://nightscout.github.io/nightscout/setup_variables/",
-      "type": "info"
-    },
-    {
-      "text": "Nightscout requires HTTPS for many features (security, tokens, PWA). Usage of a reverse proxy (e.g. Nginx Proxy Manager, Traefik, Caddy) is highly recommended.",
-      "type": "warning"
-    }
-  ]
-}