refactor: Rename jupyter_viz namespace to solara_viz

[rht]

This is intentionally a separate PR so that it is easier to review.

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
Schelling	small	🔵 +0.1% [-0.2%, +0.5%]	🔵 -0.5% [-0.7%, -0.4%]
Schelling	large	🔵 -0.3% [-0.8%, +0.3%]	🔵 -1.5% [-2.1%, -0.9%]
WolfSheep	small	🔵 -0.4% [-1.5%, +0.9%]	🔵 -1.6% [-1.9%, -1.3%]
WolfSheep	large	🔵 -0.6% [-1.0%, -0.3%]	🔵 -1.2% [-1.7%, -0.8%]
BoidFlockers	small	🔵 -3.5% [-4.1%, -2.9%]	🔵 -1.4% [-2.1%, -0.7%]
BoidFlockers	large	🔵 -3.1% [-3.8%, -2.5%]	🔵 -0.6% [-1.3%, +0.1%]

[EwoutH]

Wait, but if we add a second function/class here (#2187 (comment)), solara_viz is not fitting anymore, right?

[rht]

A PyGameViz would be in pygame_viz.py. Otherwise it would be hard to read 2 different frameworks in 1 file.

[EwoutH]

Fair, looks good