Code Quality: Migrated CopyFileFromApp and MoveFileFromApp to CsWin32

[gumbarros]

Resolved / Related Issues

• Were these changes approved in an issue or discussion with the project maintainers? In order to prevent extra work, feature requests and changes to the codebase must be approved before the pull request will be reviewed. This prevents extra work for the contributors and maintainers.
  Part of Code Quality: Remove Vanara and DllImport & use CsWin32 #14505, Code Quality: Replace Vanara with CsWin32 #15000

Validation
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[0x5bfa]

Great choice for the first step!

It looks very good!!
Replacing with it won't affect on behavior because both DllImport and CsWin32 use P/Invoke if the project can be build.

[0x5bfa]

I think you can put more two DeleteFileFromApp and DeleteFolderFromApp.

[yaira2]

LGTM

[yaira2]

I think you can put more two DeleteFileFromApp and DeleteFolderFromApp.

Let's try to keep these PRs small in scope to make the review easier.