examples: Fix schelling viz

[EwoutH]

Fix the Schelling visualisation. Default arguments are already defined in the model.py, and the visualisation crashed probably because of the order having changed.

Before:

  File "C:\Users\Ewout\.virtualenvs\Py312\Lib\site-packages\mesa\examples\basic\schelling\agents.py", line 20, in step
    similar = sum(1 for neighbor in neighbors if neighbor.type == self.type)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Ewout\.virtualenvs\Py312\Lib\site-packages\mesa\examples\basic\schelling\agents.py", line 20, in <genexpr>
    similar = sum(1 for neighbor in neighbors if neighbor.type == self.type)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Ewout\.virtualenvs\Py312\Lib\site-packages\mesa\space.py", line 371, in iter_neighbors
    for x, y in self.get_neighborhood(pos, moore, include_center, radius):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Ewout\.virtualenvs\Py312\Lib\site-packages\mesa\space.py", line 309, in get_neighborhood
    x_range = range(x - radius, x + radius + 1)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'float' object cannot be interpreted as an integer

After:

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
BoltzmannWealth	small	🔵 +3.5% [+1.9%, +5.3%]	🔵 +0.1% [-0.0%, +0.3%]
BoltzmannWealth	large	🔵 -0.5% [-1.0%, +0.0%]	🔵 -0.2% [-0.7%, +0.4%]
Schelling	small	🔵 -0.4% [-0.6%, -0.2%]	🔵 +0.7% [+0.5%, +0.9%]
Schelling	large	🔵 -0.7% [-1.0%, -0.4%]	🔵 +0.3% [-0.3%, +0.9%]
WolfSheep	small	🔵 -0.2% [-0.4%, +0.1%]	🔵 -0.4% [-0.5%, -0.2%]
WolfSheep	large	🔵 +0.0% [-0.4%, +0.3%]	🔵 +0.2% [-0.3%, +0.6%]
BoidFlockers	small	🔵 +1.3% [+0.9%, +1.7%]	🔵 +0.8% [-0.0%, +1.7%]
BoidFlockers	large	🔵 +1.1% [+0.7%, +1.6%]	🔵 +1.8% [+1.3%, +2.4%]