CLI shows "ctrl+enter enqueue" but "ctrl+enter" adds a line break to the prompt and "ctrl+q" is the enqueue command

### Describe the bug

https://github.com/user-attachments/assets/7df968c2-5537-4af6-96e2-bcf24f153dbe

The video shows me typing the first line, pressing ctrl + enter which enters a line break, then typing the second line, then pressing ctrl + q which enqueues the command.

### Affected version

GitHub Copilot CLI 1.0.61.

### Steps to reproduce the behavior

1. Run a command in Copilot CLI. While the command is running...
2. Type "first line" -- the instruction "ctrl+enter enqueue" should be shown
3. Press ctrl+enter -- a line break should be added to the prompt line
4. Press ctrl+q -- the prompt should be enqueued

### Expected behavior

Expected ctrl+enter to enqueue the second command

### Additional context

Windows 11 x86_64 powershell windows terminal

首先，在命令运行时，分别在 Windows PowerShell 和 Windows Terminal 中复现 Copilot CLI 的提示行为。跟踪 CLI 提示对 Ctrl+Enter 和 Ctrl+Q 的键盘处理，然后验证显示的快捷键是否与实际将命令加入队列的按键一致，并确认换行仍按预期工作。

由索引模型根据 Issue 内容生成。