Updated breadcrumb to use fullpath for query params

What does this MR do and why?

Fixes #395751 (closed)

While we transition to using IID in the work items path, the URL needs to include a ?iid_path=true query param. Using request.fullpath fixes this

Screenshots or screen recordings

How to set up and validate locally

Visit a url for a task or OKR like #395751 (closed)

The breadcum link for Work Item should also include the query param iid_path=true as shown in the image above

MR acceptance checklist

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Related to #393824 (closed)