RFR: 8329756: [macos] "javax/swing/JTable/KeyBoardNavigation.java" fail because most combinations of navigational keys with the Ctrl key do not work

[Tejesh R]

Mismatch in key combinations, I have taken native macos Numbers application as reference to verify. Have added `Ctrl-Shift Left/Right` action keys similar to `Ctrl-Shift UP/DOWN` which would be expected functionality. I've removed those test instructions which are not applicable/implemented/not working in Macos keyboard navigation.

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

Commit messages:
 - Updated Ctrl-Shift Left/Right key action + Test Instruction

Changes: https://git.openjdk.org/jdk/pull/20331/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20331&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329756
  Stats: 13 lines in 2 files changed: 2 ins; 5 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/20331.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20331/head:pull/20331

PR: https://git.openjdk.org/jdk/pull/20331