Updating stoichiometry names

[davidorme]

Description

Incredibly picky, but the plant stoichiometry code has a typo stochiometry -> stoichiometry that we didn't spot. This also caught a couple of typos in comments elsewhere in the codebase. I've also fixed stochiometric -> stoichiometric and stochiometries -> stoichiometries.

Fixes #1026

Type of change

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist

• Make sure you've run the pre-commit checks: $ pre-commit run -a
• All tests pass: $ poetry run pytest

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works
• Relevant documentation reviewed and updated

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.23810% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 95.13%. Comparing base (c79a194) to head (8ede542).
⚠️ Report is 1299 commits behind head on develop.

Files with missing lines	Patch %	Lines
virtual_ecosystem/models/plants/plants_model.py	94.73%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1027   +/-   ##
========================================
  Coverage    95.13%   95.13%           
========================================
  Files           80       80           
  Lines         6722     6722           
========================================
  Hits          6395     6395           
  Misses         327      327           

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[sallymatson]

That's totally my bad. Thanks for fixing David!! And for being a better speller than me!!!