RFR: 8336272: SizeToSceneTest: fullScreen tests fail on Ubuntu 22.04

[Marius Hanl]

Tests that the `Stage Size` is between the `Visual Screen bounds - 50 (delta)` and `Screen bounds + 50 (delta)`.
-> `stageSize >= (visualBounds - 50)` & `stageSize <= (bounds + 50)`.

Tested only on Windows 10 for now.

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Commit messages:
 - JDK-8336272: SizeToSceneTest: fullScreen tests fail on Ubuntu 22.04

Changes: https://git.openjdk.org/jfx/pull/1501/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1501&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336272
  Stats: 14 lines in 1 file changed: 9 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jfx/pull/1501.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1501/head:pull/1501

PR: https://git.openjdk.org/jfx/pull/1501