Fixes numbers being incorrectly truthy

[OAGr]

Closes #2656

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🦋 Changeset detected

Latest commit: df7d593

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@quri/squiggle-lang	Patch
@quri/squiggle-components	Patch
@quri/prettier-plugin-squiggle	Patch
vscode-squiggle	Patch

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• Apply: All docstrings and comments should be up to date.
• Apply: Ensure that all variables and functions have descriptive names.
• Apply: Avoid using unnecessary separators or extra characters in code.
• Apply: Use consistent indentation and spacing throughout the code.
• Apply: Ensure that all code is properly formatted and follows the style guide.
• Apply: Avoid using magic numbers or hard-coded values in the code.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (25d582f) 71.96% compared to head (3dd8044) 71.95%.
Report is 3 commits behind head on main.

❗ Current head 3dd8044 differs from pull request most recent head df7d593. Consider uploading reports for the commit df7d593 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2658      +/-   ##
==========================================
- Coverage   71.96%   71.95%   -0.01%     
==========================================
  Files         115      115              
  Lines        6231     6187      -44     
  Branches     1213     1208       -5     
==========================================
- Hits         4484     4452      -32     
+ Misses       1739     1727      -12     
  Partials        8        8              

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