Keyboard: Explore prompting whisper with the text before the cursor

[soupslurpr]

This might result in improved performance in cases of correcting a misspelled word, adding on more to a sentence, and to the middle of a sentence. If it works well enough, then the new text adaptiveness feature can be altered or even removed to let this feature work instead of overriding it.

[soupslurpr]

I can't get this to work, it just seems to ignore the prompts. I followed https://cookbook.openai.com/examples/whisper_prompting_guide#pass-names-in-the-prompt-to-prevent-misspellings and failed to reproduce the Aimee and Shawn example.