[jdk21u-dev] RFR: 8226938: [TEST_BUG]GTK L&F: There is no Details button in FileChooser Dialog

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

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Commit messages:
 - Backport fe98f86b5792cbb17d47871452d27ab87d72b342

Changes: https://git.openjdk.org/jdk21u-dev/pull/1370/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1370&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8226938
  Stats: 77 lines in 1 file changed: 77 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1370.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1370/head:pull/1370

PR: https://git.openjdk.org/jdk21u-dev/pull/1370