Fixed breadcrumb title not linking

Merged Phil Hughes requested to merge breadcrumb-item-links into master

What does this MR do?

Fixes issues & merge requests references not having links in the breadcrumbs. It also introduces it back to all sub-titles on the page. This includes pipelines, jobs, issues, merge requests etc. doing this saves us having to update different templates to specifically choose what pages we want to have links & also keeps it consistent between the different views.

This is a regression from adding in the new breadcrumbs bar.

What are the relevant issue numbers?

Closes #38059 (closed)

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