RFR: 8251240: Menus inaccessible on Linux with i3 wm

Sun Jul 9 17:47:58 UTC 2023

The bug happens because `gdk_window_get_frame_extents` is not returning the correct position when o i3-wm, probably by some bug on the wm itself.

Te fix replaces the usage of the function for already known extents value calculation.

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Commit messages:
 - Merge branch 'master' into fix_menu_i3_wm
 - Fix menu position on i3 wm

Changes: https://git.openjdk.org/jfx/pull/1173/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1173&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8251240
  Stats: 7 lines in 1 file changed: 0 ins; 4 del; 3 mod
  Patch: https://git.openjdk.org/jfx/pull/1173.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1173/head:pull/1173

PR: https://git.openjdk.org/jfx/pull/1173