Remove "Details" item from breadcrumb and JSON+JD on Project top

What does this MR do?

Removes an extra "Details" item from the breadcrumb and JSON+JD on Project top.

LD+JSON has no item named as "Details":

{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Administrator","item":"http://localhost:3001/root"},{"@type":"ListItem","position":2,"name":"Lab Coat","item":"http://localhost:3001/root/lab-coat"}]}

Screenshots (strongly suggested)

A project with code

A project without code

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Code review guidelines
• [n/a] Merge request performance guidelines
• Style guides
• Separation of EE specific content

Related to #283941 (closed)

Closes #35819 (closed)