RFR: 8350260: Improve HTML instruction formatting in PassFailJFrame

[Abhishek Kumar]

On Tue, 18 Feb 2025 12:27:26 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

> > Especially scrolling to the beginning.
> 
> That was the most disturbing thing. I didn't notice it before, because HTML instructions were never so long to have the vertical scroll bar.

I agree to this.
I didn't notice the clipping of number 10 before but With the changes in PFJ, test instructions look better.

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PR Comment: https://git.openjdk.org/jdk/pull/23674#issuecomment-2667590731