Various page objects had breadcrumbs and breadcrumbFor within them, this
moves those to the existing Layout page object that contains shared page objects.
This builds on filtering to allow the optimize page to show recommendations
for the active namespace vs all namespaces. If turning off the toggle causes
the summary from the active card to become excluded from the filtered list,
the active summary changes, as with the facets.
It also includes a fix for this bug:
https://github.com/hashicorp/nomad/pull/9294#pullrequestreview-527748994
This is mostly copied from the jobs list. One uncertainty
is what to do when changing a facet causes the currently-
active card to be excluded from the filtered list 🤔
This continues iteration on the DAS UI by adding the ability to directly
navigate to a recommendation summary by (namespaced) slug and a copy
button for the direct navigation link.
It includes a change to CopyButton allowing it to take a block that’s
rendered within the button.
It also changes some instances of multi-relationship traversal to use
in-summary attributes, such as summary.jobNamespace instead of
summary.job.namespace.name.
