button-in-button in AutocompleteWidget will cause hydration errors

[stexandev]

The problem:

The implementation of AutocompleteWidget uses EuiComboBox, which renders its list options as html button components. As children of these components the implementation inserts BreadcrumbPresentation components, of which parts are renders as html button components, which is against the html spec.

Also, this will cause hydration problems in frameworks like next.js

The solution:

Provide and use a BreadcrumbPresentation component that uses only non-interactive components.