[jfx20] RFR: 8304359: Create release notes for JavaFX 20 [v4]

[Abhinay Agarwal]

On Fri, 17 Mar 2023 14:09:12 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Release notes for JavaFX 20, including one important change to note (the requirement of JDK 17 as the minimum needed to run JavaFX 20) and the list of enhancements and bugs fixed in this release.
>> 
>> Note: This PR is targeted to `jfx20`.
>
> Kevin Rushforth has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Remove two bugs that were introduced and fixed in jfx20
>  - Sort by bug ID within each subcomponent

doc-files/release-notes-20.md line 123:

> 121: [JDK-8292922](https://bugs.openjdk.org/browse/JDK-8292922) | [Linux] No more drag events when new Stage is created in drag handler | window-toolkit
> 122: [JDK-8296621](https://bugs.openjdk.org/browse/JDK-8296621) | Stage steals focus on scene change | window-toolkit
> 123: [JDK-8296654](https://bugs.openjdk.org/browse/JDK-8296654) | [macos] Crash when launching JavaFX app with JDK that targets SDK 13 | window-toolkit

In the previous release notes, `|` was not wrapped with white-spaces.

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PR: https://git.openjdk.org/jfx/pull/1060