Improved Model Selection Interface

We've enhanced the model selection experience with better organization and control!

What's new:

• New Models Section: Newly available AI models now appear in a dedicated section at the top, marked with a "NEW" badge

• Dismiss New Models: Hide new models you're not interested in using the "Dismiss this model" button or the × icon. Installed models are protected and cannot be dismissed.

This keeps your model list clean and focused on what you need!