Job details won't scroll horizontally to show long lines

What does this MR do?

• Adds back old CSS to allow for horizontal scroll if the view is smaller
• Removes animation from scroll indicator if the user has scrolled once

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Tests
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #34039 (closed) Closes #33638 (closed)