[enhancement]: A secondary way to stop the server

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Contact Details

_No response_

### What should this feature add?

I'd ask for a way to terminate the server that is not Ctrl-C.

Reasoning: On Windows, stopping a program with Ctrl-C also interrupts the batch file(s) calling that program, making them ask for confirmation. This is quite annoying, especially because InvokeAI has its "what do you want to do" wrapper. With my own "start in a conda environment" wrapper, that's three prompts.

I much prefer to press any other key combination to land directly in the InvokeAI wrapper without the batch spam.

### Alternatives

A button in the UI to stop or restart would be nice, too. But hosting and stuff...

### Additional Content

Not worth its own issue: How about a config to auto-restart when "VRAM in use" after a generation doesn't go down to a reasonable level? That's the most common failure mode that forces me to Ctrl-C in the first place.