RFR: 8350136: Create release notes for JavaFX 24 [v4]

[Kevin Rushforth]

On Tue, 11 Mar 2025 20:20:08 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Kevin Rushforth has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review feedback
>
> doc-files/release-notes-24.md line 70:
> 
>> 68: JavaFX 24 supports the Java Image I/O API, allowing applications to use third-party image loaders in addition to the built-in image loaders. This includes the ability to use variable-density image loaders for formats like SVG. When an image is loaded using a variable-density image loader, JavaFX rasterizes the image with the screen's DPI scaling.
>> 69: 
>> 70: Applications that want to use this feature can use existing open-source Image I/O extension libraries, or register a custom Image I/O service provider instance with the `IIORegistry` class. Refer to the Java [Image I/O documentation](https://docs.oracle.com/en/java/javase/23/docs/api/java.desktop/javax/imageio/package-summary.html) for more information.
> 
> NOTE to reviewers: I will change this to 24 with the next commit, but since it will be transiently broken, I wanted to give reviewers a chance to see the page with working links.

Actually, I'll leave one as "23", since all of our API docs also point to 23 (since that's the boot JDK we use).

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PR Review Comment: https://git.openjdk.org/jfx/pull/1712#discussion_r1990077951