Is your feature request related to a use case or problem? Please describe.

The Bloch Sphere visualization introduced in #4171 should be updated to a bit slicker visual design.

Describe the solution you'd like

• Use a single equator instead of multiple meridians.
• Use Quantum AI brand colors
• Use thicker lines for the axes
• Use a smooth arrow, instead of the segmented, default arrowhead in ThreeJS
• Add a border around scene and add static elements around it for:
  • controls for reset view
  • labels for axes

Additional context (e.g. screenshots)

Preliminary screenshot / UX design:

What is the urgency from your perspective for this issue? Is it blocking important work?

P2 - we should do it in the next couple of quarters