RFR: 8354480: A Stage should allow simultaneous iconified and maximized states [v2]

[Thiago Milczarek Sayao]

> On some platforms (at least on Ubuntu 24.04 with GNOME and Windows 11), windows can remain maximized even when they are iconified (minimized). When the window is de-iconified (restored), it retains its maximized state.
> 
> The documentation in `Stage.java` regarding window states seems to align with this behavior. However, the code currently treats the `WindowEvent.RESTORE` event as both an unminimize (de-iconify) and an unmaximize.
> 
> Tests pass on Ubuntu 24.04 XWayland (with one unrelated screenCapture failure). But I would not rely on that since it needes specific tests.
> 
> This is not ready to integrate as it may break platform-specific code/behavior.

Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:

  Missed one change

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1777/files
  - new: https://git.openjdk.org/jfx/pull/1777/files/f9313999..ed2c444f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1777&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1777&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1777.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1777/head:pull/1777

PR: https://git.openjdk.org/jfx/pull/1777