2.4.0-rc1

This pre-release fixes some bugs and experiments with RAG techniques for the Voice Assistant:

• Very simple intent classifier using Annoy and TF-IDF.
• Improved search for Encyclopedia of Chess Openings, using Annoy and simple embeddings.

The default model for the Assistant is gpt-4-1106-preview.

Beta 8

Curated puzzles from Lichess, updated engine.

Beta 7

Replaced WAC with Lichess puzzles.
Use OpenAI-Whisper on desktop for voice recognition.

Beta 6

Updated to latest chess-openings. Bumped version to 1.28

Beta 5

Use latest engine version.

Beta 4

Show missing pieces when setting up a game from a starting FEN.
Updated engine.

Beta 3

Tweaked difficulty levels, fixed engine bugs in beta branch.