Integrated Exa.ai API as a Model

CATEGORY: Functionality

DESCRIPTION: Integrated Exa.ai API as a new AI model. Enhanced features include increasing the maximum number of results to 40, fixing the date picker to allow null values, and adding icons to navigate years up/down. The integration aims to match the Exa.ai playground as closely as possible.

IMPACT: Users can now use the Exa.ai model in their applications, allowing for more versatile and comprehensive prompt chaining capabilities.