Update title parsing

What does this MR do?

Some of the eslint titles/messages have URLs in them, but the way we use this data, the links are not clickable. This change strips the URLs out and puts them in to issue.Link objects so that they will be clickable.

It also includes some changes to appease golint.

What are the relevant issue numbers?

gitlab-org/gitlab#36331 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer