RFR: 8365643: JShell EditPad out of bounds on Windows [v2]

[David Alayachew]

> When calling the `setLocationRelativeTo()` method, a null parameter means that it centers the window in the screen. However, any subsequent resizing operations will change only the size, not the location of the window. Understandable, but now the window is no longer centered. So, changing the order of operations.

David Alayachew has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into patch-1
 - Fixing incorrect centering of EditPad window.
   
   When calling the `setLocationRelativeTo()` method, a null parameter means that it centers the window in the screen. However, any subsequent resizing operations will change only the size, not the location of the window. Understandable, but now the window is no longer centered. So, changing the order of operations.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26814/files
  - new: https://git.openjdk.org/jdk/pull/26814/files/b82d1300..409f392d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26814&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26814&range=00-01

  Stats: 464 lines in 32 files changed: 252 ins; 84 del; 128 mod
  Patch: https://git.openjdk.org/jdk/pull/26814.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26814/head:pull/26814

PR: https://git.openjdk.org/jdk/pull/26814