[jdk18] RFR: 8278609: [macos] accessibility frame is misplaced on a secondary monitor on macOS

[Anton Tarasov]

On Mon, 20 Dec 2021 09:26:31 GMT, Aleksandr Veselov <duke at openjdk.java.net> wrote:

> Use primary screen instead of window main screen to properly convert mouse position from screen coordinates to window ones.
> 
> Copy of [jdk/6815](https://github.com/openjdk/jdk/pull/6815)

@azuev-java please review.

-------------

PR: https://git.openjdk.java.net/jdk18/pull/48