RFR: 8354365: Opensource few Modal and Full Screen related tests

[Abhishek Kumar]

Few Modal and Full Screen related tests are converted from applet and open sourced.

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Commit messages:
 - Typo in Problemlist file
 - Converted from applet and open sourced

Changes: https://git.openjdk.org/jdk/pull/24685/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24685&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354365
  Stats: 488 lines in 5 files changed: 488 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24685.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24685/head:pull/24685

PR: https://git.openjdk.org/jdk/pull/24685