Windows pinentry fix desktop 991 (#2752)
Windows pinentry fix desktop 991 (#2752)

* Keep trying to show a window if we failed the first time

We need this for Windows where we try to show a window before Windows
lets us. So we fail to `.show()` and never try again. So windows that
startup really early (like pinentry) will fail.

* Check if the window is visible right after we try showing it

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