Warn user when using "_" instead of "-" in iconNames

[dzhuang]

Summary

Proposed changes

This PR brings the following changes:

• Warn user when using _ instead of - in iconNames

Related issue

#229 #298

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Testing

• I have added or updated tests that prove my fix is effective or that my feature works (if applicable)
  • Unit test
  • Snapshot test
  • Manual test

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Checklist

• I have added corresponding labels to this PR (like bug, enhancement...);
• My commits follow the Conventional Commits 1.0 Guidelines;
• My code follows the style guidelines of this project;
• I have performed a self-review of my own code;
• I have mapped technical debts found on my changes;
• I have made changes to the documentation (if applicable);
• My changes generate no new warnings or errors;

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02 🎉

Comparison is base (6df7aa1) 94.50% compared to head (e2d8c22) 94.53%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #299      +/-   ##
==========================================
+ Coverage   94.50%   94.53%   +0.02%     
==========================================
  Files          16       16              
  Lines         764      768       +4     
  Branches      133      135       +2     
==========================================
+ Hits          722      726       +4     
  Misses         18       18              
  Partials       24       24              

Impacted Files	Coverage Δ
src/providers/base.ts	87.24% <100.00%> (+0.35%)	⬆️

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