fix: replace '-" by "/" slug plugins

Author: FlorentRvl

utils/naas_chat_plugin.ipynb

@@ -224,7 +224,7 @@
     "    entity_id = entity_name.lower().replace(' ', '-')\n",
     "    plugin = {\n",
     "        \"id\": f\"{name.lower().replace(' ', '-')}-{entity_id}\",\n",
-    "        \"slug\": f\"{name.lower().replace(' ', '-')}-{entity_id}\",\n",
+    "        \"slug\": f\"{name.lower().replace(' ', '-')}/{entity_id}\",\n",
     "        \"url\": plugin_url,\n",
     "        \"name\": name,\n",
     "        \"model\": model,\n",