No line number in the vulnerability modals

Problem to solve

When getting details about a vulnerability in a Group Security Dashboard, the file is given in the modal, but not the line number. The user can't locate the problematic line of code easily.

Proposal

Display the line number under the file name in the vulnerability modal of the security dashboards.

What does success look like, and how can we measure that?

Line number is displayed in the modal.

Links / references

Discussion https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8578#note_121922726