Quake mode drop-down doesn't go back to the maximum width after opening windows copilot

[sharunkumar]

Windows Terminal version

1.17.11461.0

Windows build number

10.0.22621.0

Other Software

No response

Steps to reproduce

• Open windows Copilot preview while quake mode is open
• Close Windows Copilot
• Open / Close Quake mode using the hotkey (win+`)

Expected Behavior

No response

Actual Behavior

[zadjii-msft]

Yep, this is real. MSFT:46421646 internally.

Looks like Copilot is changing the work area. Apparently as part of the design, when the work area changes back to the original[^1], Windows doesn't resize apps back. From the thread, this seems like a good design.

We need to listen for WM_SETTINGCHANGE where wparam = SPI_SETWORKAREA, and use that to recalculate our snapped size. Shouldn't be too hard.

[^1]: grows in size? It's unclear what exactly the difference in the shrink vs grow is