Fix chatTemplate variable naming

Author: sd109

chart/azimuth-ui.schema.yaml

@@ -5,7 +5,7 @@ controls:
   /huggingface/token:
     type: TextControl
     secret: true
-  /huggingface/chat_template:
+  /huggingface/chatTemplate:
     type: TextControl
   /ui/appSettings/hf_model_instruction:
     type: TextControl

chart/values.schema.json

@@ -11,7 +11,7 @@
                     "description": "The [HuggingFace model](https://huggingface.co/models) to deploy (see [here](https://github.com/stackhpc/azimuth-llm?tab=readme-ov-file#tested-models) for a list of tested models).",
                     "default": "mistralai/Mistral-7B-Instruct-v0.2"
                 },
-                "chat_template": {
+                "chatTemplate": {
                     "type": "string",
                     "title": "Chat Template",
                     "description": "An optional chat template override for the model (see [here](https://huggingface.co/blog/chat-templates) for more information)."