remove-appxpackage: add page (#11162)

pages/windows/remove-appxpackage.md

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+# remove-appxpackage
+
+> A PowerShell utility to remove an app package from one or more user accounts.
+> More information: <https://learn.microsoft.com/en-us/powershell/module/appx/remove-appxpackage>.
+
+- Remove an app package:
+
+`remove-appxpackage {{package}}`
+
+- Remove an app package for a specific user:
+
+`remove-appxpackage {{package}} -User {{username}}`
+
+- Remove an app package for all users:
+
+`remove-appxpackage {{package}} -AllUsers`
+
+- Remove an app package but preserve it's app data:
+
+`remove-appxpackage {{package}} -PreserveApplicationData`