Local prompts file doesn't work

I am trying to setup the local prompts as I would like to add some personal information. However, this setting doesn't work:

```
predefined_chat_gpt_prompts = home .. "/chatgpt-prompts/prompts.csv",

--- or
predefined_chat_gpt_prompts = "cat " .. home .. "/chatgpt-prompts/prompts.csv",

--- or
predefined_chat_gpt_prompts = "file:///" .. home .. "/packages/chatgpt-prompts/prompts.csv",

```

Is there a way do do that?

The issue names the predefined_chat_gpt_prompts setting but provides no file, test, or entry point. Start by locating the configuration handling for that setting and reproduce the local-file examples; done means a supported local prompts file loads successfully or the configuration limitation is documented.

Written by the indexing model from the issue text.