Fix error message on invalid model name and groq access to open inter…

[ighoshsubho]

Describe the changes you have made:

I modified the error handling code to include a check for invalid model names and provide appropriate feedback to the user -

1. When user enters incorrect model name.
2. When user enters model from groq but not accessible.

Reference any relevant issues (e.g. "Fixes #000"):

Fixes #1368

Pre-Submission Checklist (optional but appreciated):

• I have included relevant documentation updates (stored in /docs)
• I have read docs/CONTRIBUTING.md
• I have read docs/ROADMAP.md

OS Tests (optional but appreciated):

• Tested on Windows
• Tested on MacOS
• Tested on Linux

[MikeBirdTech]

Nice work @ighoshsubho! Thanks for picking up this issue and resolving it!

@KillianLucas take a look and let Subho know what you think

[KillianLucas]

Much better. There's probably even more throughout the repo that's OpenAI centric / not model agnostic, this is a huge one that happens very frequently. Great fix @ighoshsubho, merging now!

[ighoshsubho]

Much better. There's probably even more throughout the repo that's OpenAI centric / not model agnostic, this is a huge one that happens very frequently. Great fix @ighoshsubho, merging now!

Thanks @KillianLucas will be fixing more since Open Interpreter became my necessity!