Fix settings

Local AI support for completions and embeddings (#93)

* Refactor AI context (1)

* Refactor AI (2) & local embeddings support

* cleanup for v0.9.8

* Performance tweaks and make embedding model editable

* Embedding regeneration when models change

Cleanup UI & improve homepage

Remove bad import

Fix: close chat while AI is responding

Fix editor button z-index

Merge pull request #74 from UdaraJay/chat

Chat feature

Fix highlights text color in light themes

Update README.md

Signed-off-by: Udara Jay <UdaraJay@users.noreply.github.com>