Update app.py

app.py

@@ -17,7 +17,7 @@ api_key = os.getenv("g_key")
 client = Groq(api_key=api_key)
 
 # Hugging Face API details for image generation
-H_key = os.getenv("hf_key")
+H_key = os.getenv("h_key")
 API_URL = "https://api-inference.huggingface.co/models/Artples/LAI-ImageGeneration-vSDXL-2"
 headers = {"Authorization": f"Bearer {H_key}"}