Bug - JumpLinks - scroll position & scrollspy

[evwilkin]

Bugs identified in JumpLinks include where a clicked link is scrolled to on the screen and the scrollspy behavior not working.

• https://staging-v6.patternfly.org/components/jump-links/react-demos#scrollspy-with-subsections

### JumpLinks bugs
- [ ] JumpLinks scroll the selected link to the middle of the page, it should scroll to the top of the screen.
- [ ] Scrollspy does not appear to work, the active jumplink does not update as the page is scrolled.

Screen.Recording.2024-08-14.mov

[evwilkin]

Scrollspy:

• feat(Page,Drawer): core bump and updates #10211 added a wrapper container .pf-v6-c-page__main-container around the main element - the demo needs to pass this as the scrollableSelector rather than the main element which gets passed the id #scrollable-element from the DashboardWrapper's mainContainerId="scrollable-element"

Scroll position:

• Offset needs to be calculated from above wrapper element's top position (currently set to 10, should be more like 84).

[evwilkin]

Closed by #10866