feat: split gguf files support

[giladgd]

Description of change

• feat: split gguf files support
• feat: pull command
• feat: stopOnAbortSignal and customStopTriggers on LlamaChat and LlamaChatSession
• feat: checkTensors parameter on loadModel
• fix: more efficient max context size finding algorithm
• fix: make embedding-only models work correctly
• fix: perform context shift on the correct token index on generation
• docs: update Vitepress, add code type information on hover
• docs: update simple usage

Fixes #211

Pull-Request Checklist

• [x] Code is up-to-date with the master branch
• [x] npm run format to apply eslint formatting
• [x] npm run test passes with this change
• [x] This pull request links relevant issues as Fixes #0000
• [x] There are new or updated unit tests validating the change
• [ ] Documentation has been updated to reflect this change
• [x] The new commits and pull request title follow conventions explained in pull request guidelines (PRs that do not follow this convention will not be merged)