[help wanted]: website ui improvement

[youkaichao]

Anything you want to discuss about vllm.

currently, "ask AI" and doc version selection are overlapped.

we should move doc version selection to the left.

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[rafvasq]

From what I've read, moving the version selector isn't supported out of the box with the current book theme which extends from the PyData theme (pydata/pydata-sphinx-theme#705) and otherwise I think it would be a busy CSS workaround unless vLLM adopts the ReadTheDocs theme to easily attach it to the sidebar

I think the simplest solution would be to move the AskAI button instead and then, using the current theme, I could also work on introducing the theme's supported Version Selector. Let me know what you think @youkaichao!

[youkaichao]

didn't expect it is complicated as this. thanks for your hard work, and let's keep the AskAI button in the left then.