[jfx22] RFR: 8324879: Platform-specific preferences keys are incorrect for Windows toolkit

Tue Jan 30 19:26:08 UTC 2024

This pull request contains a backport of commit [af7e0571](https://github.com/openjdk/jfx/commit/af7e05716711d942df20eb1f807b384810a4a839) from the [openjdk/jfx](https://git.openjdk.org/jfx) repository.

The commit being backported was authored by Michael Strauß on 30 Jan 2024 and was reviewed by Kevin Rushforth and Andy Goryachev.

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Commit messages:
 - Backport af7e05716711d942df20eb1f807b384810a4a839

Changes: https://git.openjdk.org/jfx/pull/1355/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1355&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324879
  Stats: 40 lines in 3 files changed: 33 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jfx/pull/1355.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1355/head:pull/1355

PR: https://git.openjdk.org/jfx/pull/1355