RFR: 8333919: [macOS] dragViewOffsetX/dragViewOffsetY are ignored for the dragView image [v4]

[Andy Goryachev]

On Mon, 12 Aug 2024 17:13:51 GMT, Lukasz Kostyra <lkostyra at openjdk.org> wrote:

>> When fixing [JDK-8233955](https://bugs.openjdk.org/browse/JDK-8233955) offset calculation was left out, which made Dragboard offset API not work on macOS.
>> 
>> This change fixes this mistake. Now drag image should be properly offset.
>
> Lukasz Kostyra has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Merge two if image != nil statements together
>   
>   Those were unnecessarily split

Marked as reviewed by angorya (Reviewer).

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PR Review: https://git.openjdk.org/jfx/pull/1532#pullrequestreview-2234162494