RFR: 8469: Should make rules and page heading accessible through keyboard in JFR overview page

[Marcus Hirt]

On Fri, 7 Nov 2025 13:59:20 GMT, Aymane Harmaz <aharmaz at openjdk.org> wrote:

> This PR makes it possible to reach JFR result pages and expand / collapse rule text on the JFR result overview using keyboard enter and tab keys.
> 
> <img width="1067" height="480" alt="focused-rule" src="https://github.com/user-attachments/assets/df38672e-4882-420a-8e45-f7f3f33349cd" />
> 
> <img width="1067" height="480" alt="expanded-rule-using-enter-key" src="https://github.com/user-attachments/assets/ec45e75b-48f6-424b-a8e7-7bc5b34bae0e" />

Marked as reviewed by hirt (Lead).

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PR Review: https://git.openjdk.org/jmc/pull/683#pullrequestreview-3534825668