Fix/rust fmt

[NailxSharipov]

Summary

Changes

Testing

• cargo test
• cargo fmt
• cargo clippy

Checklist

• Added tests for new behavior or bug fixes
• Updated docs/examples if needed

[codecov]

Codecov Report

❌ Patch coverage is 69.23077% with 72 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
iOverlay/src/build/boolean.rs	33.33%	14 Missing ⚠️
iOverlay/src/core/simplify.rs	53.33%	7 Missing ⚠️
iOverlay/src/segm/string.rs	30.00%	7 Missing ⚠️
iOverlay/src/mesh/stroke/builder.rs	50.00%	6 Missing ⚠️
iOverlay/src/string/overlay.rs	66.66%	6 Missing ⚠️
iOverlay/src/segm/offset.rs	0.00%	5 Missing ⚠️
iOverlay/src/core/extract.rs	71.42%	4 Missing ⚠️
iOverlay/src/core/overlay.rs	70.00%	3 Missing ⚠️
iOverlay/src/float/string_graph.rs	40.00%	3 Missing ⚠️
iOverlay/src/mesh/outline/builder_join.rs	0.00%	3 Missing ⚠️
... and 9 more

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