Opening the GitHub Copilot app from the start menu when it's already running ...

Opening the GitHub Copilot app from the start menu when it's already running should bring the window to the foreground.

I forgot that I ran the app earlier today, and it wasn't on my task bar, so I tried running it from the start menu multiple times, and thought it was crashing since nothing happened. It took me a while to realize there's a github icon in my sys tray, with an option to show the window again.

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| Field | Value |
| --- | --- |
| App version | 1.1.10 |
| OS | Windows 10.0.26200 |
| Theme | GitHub |
| Path | / |
| Tenure | Week 9 |

在 Windows 10 上复现此问题：当应用已在运行且从 taskbar 隐藏时，从 Start menu 启动该应用。首先跟踪 Start menu launch behavior 和 system-tray show-window behavior；当后续启动会将现有窗口置于前台，而不是看起来什么也没发生时，即表示完成。

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