RFR: 8248: [Accessibility] Low Contrast in High Contrast mode on Stacktrace View [v2]

[Suchita Chaturvedi]

> This PR is to fix the accessibility issue for High Contrast mode. Stracktrace View was not readable at all in dark mode.
> 
> Before the fix:
> <img width="959" alt="image" src="https://github.com/user-attachments/assets/f12f1b7d-aa8a-4cce-8e0c-7731d5f9cc96">
> 
> After the fix:
> <img width="959" alt="image" src="https://github.com/user-attachments/assets/8f7be98a-206b-4758-a1c2-8971d7ab1c55">

Suchita Chaturvedi has updated the pull request incrementally with one additional commit since the last revision:

  Restart not required to apply the DARK mode appearance preference

-------------

Changes:
  - all: https://git.openjdk.org/jmc/pull/580/files
  - new: https://git.openjdk.org/jmc/pull/580/files/b74d29ea..8663a808

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=580&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=580&range=00-01

  Stats: 43 lines in 2 files changed: 27 ins; 8 del; 8 mod
  Patch: https://git.openjdk.org/jmc/pull/580.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/580/head:pull/580

PR: https://git.openjdk.org/jmc/pull/580