[jfx19] RFR: 8300771: Create release notes for 19.0.2.1

[Abhinay Agarwal]

Add release notes for JavaFX 19.0.2.1

-------------

Commit messages:
 - 8300771: Create release notes for 19.0.2.1

Changes: https://git.openjdk.org/jfx/pull/1006/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1006&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300771
  Stats: 13 lines in 1 file changed: 13 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1006.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/1006/head:pull/1006

PR: https://git.openjdk.org/jfx/pull/1006