Should we quit `gptel-system-prompt` after select?

[tshu-w]

I prefer to quit gptel-system-prompt after select a directive

I'd like to know what you think.

[karthink]

My idea when making this persist was that you can't preview the directive before you choose it, so the user might want to press (in this example) p, d, c, w etc and read the "current directive" header before finalizing their choice:

That said, the current directive is shown here in the main gptel-menu as well:

So what you suggest makes sense too. It would take two keys now -- hp, hd, hc, hw etc -- to preview directives. Let me try your PR for a couple of days and see if it works better this way.

[tshu-w]

And the directive will show in the echo area after selection too. For me, I'll be pretty sure of each selection and there are rarely multiple switches, so I want to avoid redundant exits press.

[karthink]

It works well, thank you for the PR.