fix: [#2473] ignore 0 sized precollisions

[eonarheim]

===:clipboard: PR Checklist :clipboard:===

• 📌 issue exists in github for these changes
• 🔬 existing tests still pass
• 🙈 code conforms to the style guide
• 📐 new tests written and passing / old tests updated with new scenario(s)
• 📄 changelog entry added (or not needed)

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Closes #2473

This PR fixes an issue where a degenerate 0 sized collision causes issues with the precollision event emit. Previously an erroneous left precollision would be emitted when the minimum translation vector (mtv) was (-0, -0)

Changes:

• Filters out 0 sized contacts in precollision to guard against a degenerate side calculation