RFR: 8365635: Add MOUSE_DRAG_DONE event type [v2]

[John Hendrikx]

On Sat, 30 Aug 2025 15:46:29 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:
> 
>   Missing @since

Marked as reviewed by jhendrikx (Reviewer).

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PR Review: https://git.openjdk.org/jfx/pull/1873#pullrequestreview-3290358444