Add support for Microsoft Edge WebView2 apps

[isaak654]

Is your feature request related to a problem or use case?

#2287 (originally posted by @6Tom)

Dear friends, thank you very much for your hard work.

I found that all applications based on webview2 cannot run normally in the sandboxie. So may this support be added in the future?

Love you guys so much.

Describe the solution you'd like

The same one described in #2287
I am not sure whether this should be applied in Templates.ini or elsewhere.

Describe alternatives you've considered

No response

[DavidXanatos]

what software exactly does not work?

[okrc]

what software exactly does not work?

All windows that use WebView2. For example, https://github.com/MicrosoftEdge/WebView2Samples/releases/tag/1.0.902-prerelease

[DavidXanatos]

for me
ExternalManifestHack=msedgewebview2.exe,y
is enough to get it working this will be included in the next build in the tempaltes.ini

[6Tom]

Yes, originally, no webview2 app can run normally in sandboxie. But this
ExternalManifestHack=msedgewebview2.exe,y
It solves the problem of many webview2 apps. I tried some webview2 apps, they can be used normally.

Thank okrc, isaak654 and DavidXanatos.