[FancyZones] App zone history on multiple desktops

[vldmr11080]

Summary of the Pull Request

1. Add support to save zone history over multiple desktops for single app.
2. After virtual desktop is deleted, remove app zone history as well.

PR Checklist

• Applies to [FancyZones] save app zone history per VD #2684 and [FancyZones] App zone history contains deleted virtual desktops #2678
• CLA signed. If not, go over here and sign the CLA

Validation Steps Performed

Multiple desktops app zone history:

1. Create more than one desktop and assign some layout to them.
2. Assign two instances of the same application to different desktops.
3. Close those instances.
4. Re-open them again.
5. Check C:\Users\<user>\AppData\Local\Microsoft\PowerToys\FancyZones files app-zone-history.json.

Expected result: Information about zone history of single application contains information for different desktops, after application is opened, it goes to the different zone based on which desktop it is.

App zone history data of deleted desktop:

1. Create more than one desktop and assign some layout to them.
2. Assign some applications into zones on all desktops.
3. Delete one of them.
4. Check C:\Users\<user>\AppData\Local\Microsoft\PowerToys\FancyZones files app-zone-history.json and zones-settings.json.

Expected result: No data belonging to deleted desktops is found.

[enricogior]

@vldmr11080
if you have more commits to come, please change this to a draft PR to avoid being reviewed before it's ready.

[vldmr11080]

@vldmr11080
if you have more commits to come, please change this to a draft PR to avoid being reviewed before it's ready.

No, last few of them were just minor changes in unit tests, and they are finished now. Core JSONHelpers implementation is finalized already.

[SeraphimaZykova]

Is it expected that in app-zone-history was erased all history for app that was removed from one of layouts?

Repro steps:

• Apply layout
• Create VD
• Snap window to both layouts
• Remove window from any layout

App will be removed from all layouts.

[vldmr11080]

Is it expected that in app-zone-history was erased all history for app that was removed from one of layouts?

Repro steps:

• Apply layout
• Create VD
• Snap window to both layouts
• Remove window from any layout

App will be removed from all layouts.

Thanks for the catch! It is not intended for sure, I'm looking into it. Solved!

[SeraphimaZykova]

Nice work! App history is saved for different VDs properly.
I played with it and tried besides described behavior removing VD while PT is not running and for me all scenarios works well.

[ivan100sic]

Both validation scenarios work. I also checked that settings from v0.18.1 are migrated correctly. Unit tests work.

[yevhenii44-zz]

LGTM
Tested, both scenarios works.

[enricogior]

This fixes the virtual desktop issue, we still have to fix history for multi monitor.