Feature req: color for the input prompt

[Tim Hockin]

1. What version of Delve are you using (dlv version)?

Delve Debugger
Version: 1.21.1
Build: $Id: a358c02f24aa7047ecc562b0587dc2d08330b2cf $

2. What version of Go are you using? (go version)?

go version go1.21.3 linux/amd64

4. What operating system and processor architecture are you using?

linux amd64

6. What did you do?

Ran dlv with lots of output

7. What did you expect to see?

More color

9. What did you see instead?

Too little color!

Specifically, when I have a lot of output, I sometimes need to scroll-back a lot. It's hard to visually find the "edges" between commands. If the (dlv) prompt and typed input could have a color config, I would set that to something bright, so I could scrollback more easily.