RFR: 8301606: JFileChooser file chooser details view "size" label cut off in Metal Look&Feel

[Tejesh R]

"size" label which is _RIGHT_ aligned is cut off on header cell. The issue is not only w.r.t to `JFileChooser` rather it is part of `JTable`. The root caused is found to be that in metal L&F the border insets is set to `(2,2,2,0)` meaning the right most inset value is 0. Hence when UIScaling increases the issue will be visible clearly. The fix addresses the issue by setting the right `inset` to 2 similar to other `inset` values. (Though the reason for setting it to 0 is unclear since it was initial load). 
CI testing shows green.
After the fix at 225% scaling:
![image](https://github.com/openjdk/jdk/assets/94159358/f3e5a88a-1710-4ee0-84aa-338bc93010b2)

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Commit messages:
 - Removed white space
 - Fix + Manual Test

Changes: https://git.openjdk.org/jdk/pull/14464/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14464&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301606
  Stats: 140 lines in 2 files changed: 139 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14464.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14464/head:pull/14464

PR: https://git.openjdk.org/jdk/pull/14464