Add hiding + re-ordering to personas

Bump Transformer Version (onyx-dot-app#857)

Fix persona document sets

Google Drive handle invalid PDFs (onyx-dot-app#838)

Disable Chain of Thought for now (onyx-dot-app#837)

Fix ccPair pages crashing

DanswerBot Chat (onyx-dot-app#831)

Rework header a bit + remove assumption of all personas having a prompt

Add support for global API prefix env variable

Option to speed up DanswerBot by turning off chain of thought (onyx-d…

…ot-app#816)