Fix get_avatar call parameters, missing stablediffusion_api_base and duckduck go search limit rate problem

[greygoo]

• The model parameter is triggering a parameter error, and isn't used in the function, removing it makes image generation got past the parameter error.
• The missing stablediffusion_api_base seems to have lacked some chars :)
• When the search step appeared, it failed with a rate limit error, updating the module fixes that

With the commits, LocalAGI did create an avatar and displayed in in the terminal as well as successfully planned a trip.

[greygoo]

forced fix was typo in commit - again...