fix: cleanup rendered webui config

open-webui/config.json

@@ -1,22 +1 @@
-{
-  "ollama": {
-    "base_urls": [
-      "http://ollama:11434"
-    ]
-  },
-  "audio": {
-    "tts": {
-      "openai": {
-        "api_base_url": "http://tts:8000/v1",
-        "api_key": "sk-dummy-key"
-      },
-      "engine": "openai",
-      "model": "tts-1",
-      "voice": "alloy"
-    },
-    "stt": {
-      "engine": "",
-      "model": "whisper-1"
-    }
-  }
-}
+{}