JSON deformatter

Sometimes I need to deformat a JSON into a single line (as if it had been stringified). For example, when editing a JSON blob from a database column it would be nice to be able to copy the stringified JSON into json.pizza, format it, edit the parts I need to edit, and then return it to a single line format.

Start by locating the JSON formatting entry point in json.pizza and follow how formatted input is produced. Confirm the change by checking that formatted JSON can be converted back to valid single-line JSON suitable for copying into a database column.

Written by the indexing model from the issue text.