Fix link issues with labels on project/group labels pages

What does this MR do?

Summary of issues fixed:

1. On the project labels page, the label itself should not be clickable.
2. On the group labels page, the links for Issues and Merge requests should be shown.

@ddavison I added a lot more detail in a comment on the issue #54894 (closed). Please let me know if you think I've hit on the right solution or not!

Before screenshots:

(Note: there is a link within the div.)

(Note: there are not links for Issues and Merge requests.)

After screenshots:

(Note: there is no link within the div.)

(Note: there are links for Issues and Merge requests.)

What are the relevant issue numbers?

Solves #54894 (closed).

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• Security reports checked/validated by reviewer