[HOS-687] [HOS-678] add ai builder docs sidebar (#1341)

* [HOS-678] add ai builder docs sidebar

* new ai builder sections

* adding to docs (1)

* change ai docs to all be 1 tab

* ai db docs

* add missing pages

* github integration ai docs

* image as prompt

* image as prompt

* env vars ai docs

* deploy docs ai

* what is reflex build page

* download app ai docs

* templates doc ai

* external packages ai docs and small edits

* Fix up the overview page; Comment out unfilled pages; fix mobile view navigation spacing

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Co-authored-by: Alek Petuskey <[email protected]>
Co-authored-by: pourhakimi <[email protected]>
Co-authored-by: Tom Gotsman <[email protected]>

Author: 4 people