docs: add cheatsheet env and update theme

[Revathyvenugopal162]

No description provided.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.04% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (052f6ce)	2510	2188	87.17%
Head commit (d98929e)	2510 (+0)	2187 (-1)	87.13% (-0.04%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1129)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.13%. Comparing base (052f6ce) to head (d98929e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1129      +/-   ##
==========================================
- Coverage   87.17%   87.13%   -0.04%     
==========================================
  Files          39       39              
  Lines        2510     2510              
==========================================
- Hits         2188     2187       -1     
- Misses        322      323       +1     

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[klmcadams]

This can be marked ready for review once ansys-sphinx-theme v1.3.4 has been released