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## Description
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## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin.
---------
Co-authored-by: Igor Ilic <30923996+dexters1@users.noreply.github.com>
* Switch to gpt-4o-mini by default
* Add option and make gpt-4o-mini default in frontend
* Run llama index notebook without extra arguments in poetry install
* Install extras for llama_index_notebook run