Add warning to website (#11711)

frontend/public/json/bichon.json

@@ -35,6 +35,10 @@
     {
       "text": "The Disk space initially allocated by the script is only a placeholder, as we can't know how much space you will ever need. You should increase it to match your workload.",
       "type": "info"
+    },
+    {
+      "text": "Please copy your `BICHON_ENCRYPT_PASSWORD` from `/opt/bichon/bichon.env` to a safe place.",
+      "type": "warning"
     }
   ]
 }