Backstage/timeago auto component

What does this MR do?

(This MR originated from !20978 (merged))

• Create a shared Vue component time_ago_auto, which is responsible for displaying dates in the "timeago" format which automatically update with a shared clock.
• Integrate this component into the Web IDE status bar.

Why was this MR needed?

There is opportunity for encapsulating this reusable functionality.

Does this MR meet the acceptance criteria?

• Tests added for this feature/bug
• Conforms to the code review guidelines
  • Has been reviewed by a UX Designer
  • Has been reviewed by a Frontend maintainer
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• If you have multiple commits, please combine them into a few logically organized commits by squashing them
• Internationalization required/considered
• End-to-end tests pass (package-and-qa manual pipeline job)