Creates possibile branches for LLM text generation in the Canvas.
Select a card in the canvas and press command + D to generate completions. Completions will be generated based on the aggregation of text upstream of the graph.
You will need to set your secret key in the settings before this can be used - https://platform.openai.com/account/api-keys.
This is a work-in-progress, suggestions welcome.
Based on the worldspider vscode extension.
