Integrated: 8343336: Add persistentScrollBars preference

[Michael Strauß]

On Thu, 31 Oct 2024 03:56:30 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

> This PR adds another accessibility preference that is available on all supported desktop platforms:
> 
> 1. **Windows**: Settings -> Accessibility -> Visual Effects -> Always show scroll bars
> 2. **macOS**: System Settings -> Appearance -> Show scroll bars
> 3. **Ubuntu**: Settings -> Accessibility -> Seeing -> Always show scroll bars
> 
> When the OS setting is changed, all platforms report updates that can be observed in JavaFX.
> The manual test application `test/manual/events/PlatformPreferencesChangedTest` can be used to test the feature.

This pull request has now been integrated.

Changeset: da6ad4b1
Author:    Michael Strauß <mstrauss at openjdk.org>
URL:       https://git.openjdk.org/jfx/commit/da6ad4b1e8c2aac59114949826db1e4b013a3bc5
Stats:     208 lines in 18 files changed: 153 ins; 16 del; 39 mod

8343336: Add persistentScrollBars preference

Reviewed-by: angorya, kcr

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PR: https://git.openjdk.org/jfx/pull/1618