Support semicolon delimiters in CSV

[simonw]

I'm in France: https://data.economie.gouv.fr/explore/dataset/entreprises-du-patrimoine-vivant-epv/export/

CORS version hosted here: https://gist.github.com/simonw/eef8f14394dfc21d82be0535f4b09036

[simonw]

I told Claude with its new code environment:

Use your code environment. Run "git clone https://github.com/simonw/datasette-lite" and then edit the code such that it can handle CSV that uses ; as the delimiter (automatically detecting that), then return me a diff I can apply to the project

It produced a working solution: https://claude.ai/share/875a35e4-d847-4888-b3e9-f3885dd1b5b9