[DOCS] - Recommended models

[patrickfleith]

Documentation page
There are so many models that it might be overwhelming for user to choose where to start from. Because there are so many options for each provider, and especially through Ollama or OpenRouter.

Proposal
In the LLM page, add a section with recommended models for each provider.

• Balance of cost, intelligence, and throughput

[patrickfleith]

Closed by #128