<i18n dev> RFR: 8377191: Remove AppContext from KeyboardFocusManager [v3]

[Phil Race]

> Remove AppContext from KeyboardFocusManager

Phil Race has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - Merge
 - 8377191
 - 8377191

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Changes: https://git.openjdk.org/jdk/pull/29578/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29578&range=02
  Stats: 189 lines in 6 files changed: 2 ins; 143 del; 44 mod
  Patch: https://git.openjdk.org/jdk/pull/29578.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29578/head:pull/29578

PR: https://git.openjdk.org/jdk/pull/29578