remove training "/" from API endpoints

app.py

@@ -10,8 +10,8 @@ from text_generation import Client
 from share_btn import community_icon_html, loading_icon_html, share_js, share_btn_css
 
 HF_TOKEN = os.environ.get("HF_TOKEN", None)
-API_URL = "https://api-inference.huggingface.co/models/bigcode/starcoder/"
-API_URL_BASE ="https://api-inference.huggingface.co/models/bigcode/starcoderbase/"
+API_URL = "https://api-inference.huggingface.co/models/bigcode/starcoder"
+API_URL_BASE ="https://api-inference.huggingface.co/models/bigcode/starcoderbase"
 
 FIM_PREFIX = "<fim_prefix>"
 FIM_MIDDLE = "<fim_middle>"