refactor: optimize regex compilation and fix distance logic

[minibikini]

This PR introduces two main improvements:

1. Performance Optimization: Script detection regexes are now compiled at build time instead of runtime, significantly reducing overhead for every call to `detect`.
2. Logic Fix: The distance calculation algorithm has been corrected to compare trigram ranks instead of trigram counts. This aligns the logic with the original Franc algorithm and improves stability for texts of varying lengths.

Tests have been updated to reflect the slightly adjusted probability scores resulting from the logic fix.

Benchmark Results (Short Text)

Metric	Master	Fix	Improvement
Time	~296 µs	~245 µs	~17% faster

Benchmark Results (Long Text)

Metric	Master	Fix	Improvement
Time	~868 µs	~803 µs	~7.5% faster