Windows taskbar icon never stops animating that it is in progress

### Describe the bug

I'm using Windows Terminal to run copilot cli.

After prompting copilot, the taskbar icon starts animating by showing a green progress bar that rapidly shoots from one side of the icon to the other. As soon as the progress bar has got to the far side, it immediately starts again.

This is highly distracting while I'm trying to work on anything to have this flashing in the corner of my eye. If it only happened when copilot is waiting for me to reply to a question, that would be ok. It doesn't seem to be stopping.

### Affected version

v1.0.59

### Steps to reproduce the behavior

1. Start copilot cli in Windows Terminal.
2. Prompt it.

### Expected behavior

Calm

### Additional context

_No response_

Reproduce this on Windows Terminal with copilot cli using version v1.0.59: start the CLI, submit a prompt, and observe the taskbar icon. Trace where the CLI reports progress or waiting state to Windows, then verify that the icon remains calm after prompting and only indicates progress when appropriate.

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