Improve plot recipes

[efaulhaber]

Regarding functionality, this PR only fixes the automatic widen feature of Plots.jl, fixing clipping when no explicit limits are passed. Also, GPU sol plotting now works just like CPU sol plotting.
Before:

This PR:

I also improved readability and added comments.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 70.38%. Comparing base (59e3c98) to head (0b58805).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/visualization/recipes_plots.jl	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #862      +/-   ##
==========================================
+ Coverage   70.25%   70.38%   +0.12%     
==========================================
  Files         106      106              
  Lines        6906     6894      -12     
==========================================
  Hits         4852     4852              
+ Misses       2054     2042      -12     

Flag	Coverage Δ
unit	70.38% <0.00%> (+0.12%)	⬆️

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[efaulhaber]

/run-gpu-tests