Cursor not visible when NO_COLOR=1 is set

### Describe the bug

The cursor does not appear (or perhaps uses the same color as the background) when the `NO_COLOR=1` environment variable is set.

### Affected version

0.0.350 Commit: 6bd4106

### Steps to reproduce the behavior

1. `NO_COLOR=1 copilot`
2. See the input field.

### Expected behavior

_No response_

### Additional context

_No response_