Add option to add custom settings per agent

[Josh-XT]

Problem Description

There are other settings for API keys that are not captured in agent settings and are currently required out of the .env file.

Proposed Solution

Easy work around is to add the ability for users to add custom keys into their agent settings, so if there isn't something like GOOGLE_API_KEY for example, they could hit a + and add that as the key and give it a value to assign to the agent.

Alternatives Considered

No response

Additional Context

No response

Acknowledgements

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