feat: suggest fuzzy + limit as a param

[alexgarel]

fixes: openfoodfacts/openfoodfacts-dart#465

Also add fuzzy searching.

[alexgarel]

It would be cool to add tests, but I don't know if I have the time because it will require making a sub to be able to test with a fake taxonomy.

[monsieurtanuki]

Thank you @alexgarel!
If I sum up, now there's

• the fuzzy search
• a new optional limit parameter (default is 25, max is 400)

[stephanegigandet]

One issue with doing that (which was already present before) is that we will hit the limit with entries that don't start with the searched string, even though we may have some.

e.g. just searching with one letter:

So we could create a separate counter for suggestions matching inside instead.

[sonarcloud]

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[alexgarel]

PR updated to only count for "start with" match to limit traversal.