RFR: 8326458: Menu mnemonic doesn't toggle between show and hide in Windows LAF when F10 is pressed.

[Abhishek Kumar]

Menu mnemonic doesn't toggle between show and hide state when F10 is pressed. Behavior is not similar to windows native application. Fix is to ensure that menu mnemonic state toggles between show and hide.

Can be verified with SwingSet2 application. 
CI tests are green with the fix. Link posted in JBS.

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

Commit messages:
 - Menu mnemonic F10 button press fix

Changes: https://git.openjdk.org/jdk/pull/17961/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17961&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326458
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/17961.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17961/head:pull/17961

PR: https://git.openjdk.org/jdk/pull/17961