vocab-mapper: feedback, ideas, next steps

Randomish thoughts:

• we need to save the sheets extension to a repo here on github, and work out how to publish it outside of Sheets
• work out how to add more logging so we can see more stuff from the workflow view. I think this means a) log more frequently in apollo itself, and b) work out how to get log line into the job
• work how to feedback errors into the sheet
• Instantly update the sheet columns with "loading..."
• Add a streaming mode, which processes terms one a time and emits them through a websocket to the caller. This lets us update the sheet in realtime Kind hard but very achievable.
• Run faster: it currently take 3 minute to process results. Does this matter? Can we easily speed it up? What about streaming mode? https://github.com/OpenFn/apollo/issues/165
• When we're done, show a toaster saying "we've finished!" in the sheet
• Is there any way we can poll apollo to get a progress update for the job?
• how can we limit calls, so that if the workflow is running for that sheet, we return an error? oh, collections!
• Can users paste their own target values? We'd have to process and embed them. When do we remove them? Should we cache?
• How do users control target data sets?

No files, tests, or entry points are named. Start by splitting these ideas into separately scoped issues with an identified code area and acceptance criteria; each item is done only when its specific behavior and validation are defined.