[CODE IMPROVEMENT] Add system prompt to the chat interface

[pascal-pfeiffer]

🔧 Proposed code refactoring

Add system prompt to the chat interface

Motivation

Removes the need to test system prompts outside of LLM Studio

[FavioVazquez]

Could be interesting to add a system prompt before fine-tuning directly from an input box or something like that

[maxjeblick]

Could be interesting to add a system prompt before fine-tuning directly from an input box or something like that

This is probably not too helpful, as all finetuning samples would then get the exact same system prompt (i.e. there is no information to be learned from the system prompt).