Remove nicescroll from job trace

What does this MR do?

• Removes nicescroll from job trace
• Makes header lighter
• Improves icons and tooltips
• Doesn't scroll to bottom if user already scrolled

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 #33467 (closed) Closes #33427 (closed)