Add the ability to run through LLM

**Is your feature request related to a problem? Please describe.**
Thinking about how [SuperWhisper](https://superwhisper.com) or [MacWhisper](https://goodsnooze.gumroad.com/l/macwhisper) goes about it, where you can improve the spoken text by using LLMs

**Describe the solution you'd like**
The option to run your spoken text (that has been transcribed) through an AI (Local or Cloud [#14])

# Related to PR #64

Start by reviewing related PR #64 and issue #14, then inspect the existing transcription flow in the Swift macOS app. Determine where transcribed spoken text can be sent to a local or cloud LLM, and define completion as successfully improving the transcription through that AI path.

Written by the indexing model from the issue text.