Consider RapidFuzz for string ratio

[Avasam]

https://github.com/Toufool/AutoSplit/pull/272/files/f1ba4108a91aa23ace77f002b279b9f985979924..d1dfff05bd16f4056e462c8a3aaa90cd388f258e#r1485629122

As mentioned in rapidfuzz/Levenshtein#60 (comment)
we could consider https://github.com/rapidfuzz/RapidFuzz?tab=readme-ov-file#partial-ratio from a quick glance it might allow fast partial string match with a ratio. And for perfect matches, the user can use a threshold of 1.0.

CC @ston1th