add .ndjson / .jsonl support for write

[schlichtanders]

links to #159 which only implemented the read side

for the same reasons it would also be very handy to be able to write ndjson / jsonl formats.

This would allow users to use the editing capabilities of DataPreview, which are currently not useful, as you cannot overwrite the original file due to missing support.

[typo3ua]

I support this idea too... you need to add to list JSON file too... i want to edit and save data in the JSON

[schlichtanders]

@RandomFractals any plans to implement the write support for ndjson / jsonl ?

[RandomFractals]

@schlichtanders no immediate plans at the moment.

Perhaps this extension would be a better place for providing ndjson/jsonl to/from json transforms:

https://marketplace.visualstudio.com/items?itemName=adrieankhisbe.vscode-ndjson