Support LocalAi as LLM provider by @tlandenberger (#373)

* feature: add LocalAI as llm provider

* update Onboarding/mgmt settings
Grab models from models endpoint for localai
merge with master

* update streaming for complete chunk streaming
update localAI LLM to be able to stream

* force schema on URL

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Co-authored-by: timothycarambat <rambat1010@gmail.com>
Co-authored-by: tlandenberger <tobiaslandenberger@gmail.com>