Karakeep

Main features:

• Local LLM support via ollama. Check the configuration docs for how to set it up.

Other minor fixes:

• Drop CORS restrictions on the API because it is actually intended to be used cross origins).
• Fix the “Favourites” typo in the sidebar.
• Allow specifying a specific redis database index to use instead of the default 0 one.
• Document the DISABLE_SIGNUPS flag.