Use default Postgres types for CLI instead of old "Xata Types"

[eemmiillyy]

We want to remove all the custom xata types and start using default xata types inside the CLI.

This only applies to CLI edit for now.

1. string, text, email just become text with the text length constraint
2. Links become text with only a foreign key check and a comment about the table
3. vector becomes real[] with a comment about the size and its normal constraint
4. file and file[] become xata_file and xata_file_array with a comment about default public access (?) Or should this be jsonb?

pgRollToXataColumnType can be removed or at least changed since the only type that should be used is the underlying pgType.

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