add default SolaraViz

[Corvince]

add default visualization, if no components are provided (or the string "default")

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
BoltzmannWealth	small	🟢 -4.5% [-5.6%, -3.3%]	🔵 -0.2% [-0.3%, -0.1%]
BoltzmannWealth	large	🔵 -0.4% [-1.0%, +0.2%]	🔵 +1.3% [-1.1%, +4.0%]
Schelling	small	🔵 -0.6% [-0.9%, -0.3%]	🔵 +0.4% [+0.2%, +0.6%]
Schelling	large	🔵 -0.8% [-1.9%, +0.2%]	🔵 -1.8% [-4.0%, +0.6%]
WolfSheep	small	🔵 -1.2% [-2.5%, +0.1%]	🔵 -1.1% [-1.5%, -0.8%]
WolfSheep	large	🔵 +0.0% [-1.0%, +0.9%]	🔵 +1.6% [-0.5%, +3.8%]
BoidFlockers	small	🔵 +1.1% [+0.7%, +1.5%]	🔵 +1.3% [+0.3%, +2.2%]
BoidFlockers	large	🔵 +0.8% [+0.2%, +1.4%]	🔵 +1.1% [+0.5%, +1.6%]

[EwoutH]

Nice, I think it helps that people using the viz directly notice that it's there for them to use and modify.