[jdk21u-dev] RFR: 8140527: JInternalFrame has incorrect title button width

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle.

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Commit messages:
 - Backport acf591e856ce4b43303b1578bd64a8c9ab0063ea

Changes: https://git.openjdk.org/jdk21u-dev/pull/2114/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2114&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8140527
  Stats: 187 lines in 3 files changed: 153 ins; 15 del; 19 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2114.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2114/head:pull/2114

PR: https://git.openjdk.org/jdk21u-dev/pull/2114