[jdk21u-dev] RFR: 8340799: Add border inside instruction frame in PassFailJFrame

[Goetz Lindenmaier]

I backport this for parity with 21.0.6-oracle.

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Commit messages:
 - Backport 520060f79a3cedb8f93e6bbd0e9b2823eaabf79a

Changes: https://git.openjdk.org/jdk21u-dev/pull/1120/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1120&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340799
  Stats: 47 lines in 1 file changed: 34 ins; 0 del; 13 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1120.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1120/head:pull/1120

PR: https://git.openjdk.org/jdk21u-dev/pull/1120