docs: move docs to the repo root

[BohdanPetryshyn]

Proposed Changes

This PR moves the project-wide docs from packages/basti to the root of the repository and adds a new project logo.

Checklist

• [x] I cleaned up my code.
• [x] All the tests and checks passed (npm run test).
• [x] I have added necessary documentation and/or updated existing documentation.
• [x] I have added or modified tests to cover the changes.