Fix Talkie chat template leading newline

tokenizer_config.json

@@ -1,6 +1,6 @@
 {
   "backend": "tokenizers",
-  "chat_template": "{%- set prelude = 'The following conversation took place between the HUMAN, and TALKIE - a mechanical mind imbued with the knowledge of the world and the ability to use human language - a \"thinking machine\". It is published here for the benefit of the public:' -%}{{- prelude -}}{%- for message in messages -%}{%- if message['role'] == 'user' -%}{{- '\\n\\nHUMAN:\\n\\n' + (message['content'] | trim) -}}{%- elif message['role'] == 'assistant' -%}{{- '\\n\\nTALKIE:\\n\\n' + (message['content'] | trim) -}}{%- elif message['role'] == 'system' -%}{{- '\\n\\n' + (message['content'] | trim) -}}{%- else -%}{{- raise_exception('Unsupported role: ' + message['role']) -}}{%- endif -%}{%- endfor -%}{%- if add_generation_prompt and (messages | length == 0 or messages[-1]['role'] != 'assistant') -%}{{- '\\n\\nTALKIE:\\n\\n' -}}{%- endif -%}",
+  "chat_template": "{%- set prelude = '\\nThe following conversation took place between the HUMAN, and TALKIE - a mechanical mind imbued with the knowledge of the world and the ability to use human language - a \"thinking machine\". It is published here for the benefit of the public:' -%}{{- prelude -}}{%- for message in messages -%}{%- if message['role'] == 'user' -%}{{- '\\n\\nHUMAN:\\n\\n' + (message['content'] | trim) -}}{%- elif message['role'] == 'assistant' -%}{{- '\\n\\nTALKIE:\\n\\n' + (message['content'] | trim) -}}{%- elif message['role'] == 'system' -%}{{- '\\n\\n' + (message['content'] | trim) -}}{%- else -%}{{- raise_exception('Unsupported role: ' + message['role']) -}}{%- endif -%}{%- endfor -%}{%- if add_generation_prompt and (messages | length == 0 or messages[-1]['role'] != 'assistant') -%}{{- '\\n\\nTALKIE:\\n\\n' -}}{%- endif -%}",
   "clean_up_tokenization_spaces": false,
   "eos_token": "<|endoftext|>",
   "is_local": true,