[Feature Request]: Add Coqui STT for offline Speech-to-Text

[JRMeyer]

Hi there 👋

Olivia is a great project, very cool design:) I'm not sure if the repo is still maintained, but in any case it would be great to add the offline Speech-to-Text options from @coqui-ai... Olivia is multilingual, and so is Coqui, and there are Golang bindings to make the integration easier:) There's also TTS from Coqui (without Golang bindings atm) which is very high fidelity and also offline.

https://github.com/coqui-ai/stt