On Windows, reset cursor visibility back to previous state when rendering progress

[SteveL-MSFT]

PR Summary

The progress rendering code hides the cursor during rendering and makes the cursor visible again after rendering as it assumes the cursor was previously in a visible state. However, if a script intentionally hides the cursor, then using progress will result in the cursor being visible. However, it seems that only Windows supports reading the current cursor visibility state and a platform not supported exception is thrown on Linux and macOS. So the fix is to just cache the current cursor on Windows and set it back when done rendering. No change for Linux/macOS as we still want to explicitly hide the cursor when rendering progress so that you don't see the cursor moving quickly in the console to render progress.

PR Context

Fix #16412

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[vexx32]

Looks good to me! Wish we could have a consistent impl across platforms, wonder why Unix can't check the cursor state 🤔

[SteveL-MSFT]

CI failure is due to a .NET install issue that's been reported to the .NET team

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This PR has 10 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!

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Total files changed: 1

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.cs : +10 -0

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🎉v7.3.0-preview.4 has been released which incorporates this pull request.:tada:

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