Remove unused packages from devDependencies

[dustin-ruetz]

This PR removes three unused packages from the repository's devDependencies. It's good practice to remove nused packages so that we don't need to update them or be concerned if they have vulnerabilities identified by npm audit.

• This repo does not use React, so having the eslint-plugin-react and eslint-plugin-react packages as devDependencies doesn't make sense.
  • Further to this, neither of these plugins were being referenced in the .estlintrc.yml file.
• When installing or updating dependencies a vfile-message provides its own type definitions, so you don't need @types/vfile-message installed message is logged in the terminal.
  • This repo does not use the vfile-message package and there are no references to vfile anywhere in the codebase.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (162f70a) 96.46% compared to head (6f071e4) 96.46%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #110   +/-   ##
=======================================
  Coverage   96.46%   96.46%           
=======================================
  Files          25       25           
  Lines         623      623           
  Branches       88       88           
=======================================
  Hits          601      601           
  Misses         22       22           

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