[Design] Content page changes

[KOTungseth]

We received design guidance from our Design team on the elastic.co/docs content pages.

I've include the notes here: https://www.figma.com/board/5MKyV74TSse0DOREaEwY2U/Content-pages?node-id=0-1&p=f&t=2Jte29F1IlZRXou4-0

Changes include:

• Include current page in breadcrumbs
• Move Edit this page and Report an issue links below On this page
• Update the Edit this page and Report an issue link icons