A bunch of the Wave AI types still mentioned OpenAI. Now that most of
them are being used for multiple AI backends, we need to update the
names to be more generic.
I have added Perplexity to the default AI models. I see Anthropic models
are becoming part of the default as well, so I thought I should add a
model that is specific for web search.
This pull request is a work in progress; reviews and edit
recommendations are welcome.
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Co-authored-by: sawka <mike@commandline.dev>
