RFR: 8365635: Add MOUSE_DRAG_DONE event type [v5]

[Nir Lisker]

On Sat, 11 Oct 2025 13:57:19 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

>> Adds `MOUSE_DRAG_DONE` event type to `MouseDragEvent` and appropriate handlers.
>
> Nir Lisker has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Review comments

Thanks for the reviews everyone.

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PR Comment: https://git.openjdk.org/jfx/pull/1873#issuecomment-3400785180