Allow downloading cards as an OpenAI fine-tuning prompt

[jkomoros]

https://beta.openai.com/docs/guides/fine-tuning

It should generate strings like

Generate a riff in the style of ${APP_TITLE} that contains the following words:

Usage Patterns More Value Subsidize Whale Underwater Business

#START#

General business goal: the more value the user gets, the more value extracted out to the provider of the business. If not, you have a pricing problem, or a problem where some users subsidize others, and you're very exposed to usage patterns--you're effectively leveraged. If you modeled your whale usage wrong or some kind of conditions change that change usage patterns for lots of users you could be underwater.

#END#

Where the 'following words' is the dedupedPrettyItemsFromCard from the fingerprint of each card, and the body of the text is the innerText of the card.

It should be a maintenance task that generates a JSONL file and downloads it

[jkomoros]

• [x] Generate the file contents
• [x] Add a FINE_TUNING_NAME config variable (defaults to APP_TITLE)
• [x] Download the file contents
• [x] Downloaded filename should have a timestamp
• [ ] Try different lengths of trimmed words (set randomly to train it to be more reslient?)
• [ ] Have a maintenance task that pops a prompt asking for words and then returns a prompt to pass to openAI
• [ ] The prompt to generate a prompt should default to having 3-10 words selected from the urn of distinctive words so you can just hit generate and get a random made up card
• [x] Warn if you try to generate before fully loaded
• [ ] Document in README
• [x] Remove the unnecessary training_data_name (including in README) if that really shouldn't be in the prompt.
• [x] Handle non working notes cards (e.g. content cards)