fix install for visualization tutorial in colab

[tpike3]

I removed the -e argument in the pip install because for colab that stores the install in src directory and presents some other challenges of mesa-example not being imported easily.

Removing the -e installs mesa-examples in the standard colab install location and prevents an ImportError without effecting performance if someone is using a local instantiation of their jupyter notebook

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (b53aa2f) 72.35% compared to head (1ac58a6) 72.35%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1752   +/-   ##
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  Coverage   72.35%   72.35%           
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  Files          20       20           
  Lines        1302     1302           
  Branches      246      246           
=======================================
  Hits          942      942           
  Misses        325      325           
  Partials       35       35           

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[tpike3]

Sorry I also opened the legacy advanced tutorial so their is a bunch of noise of metadata changing but no actual changes; all significant changes for visualization tutorial are at the end

[rht]

I would have not committed the legacy change, but it's fine.