use abc for provider

protocol is awesome for typing, but pycharm tooling doesn't fully
understand it && behavior difference between 3.9 and 3.11 makes it
cumbersome

update error message

add deepseek provider

Fix outdated gif link

add xai grok llm provider (#75)

Improve cli startup speed (#73)

Fix type hint

Fix shelloracle home folder not existing

Add ability to configure status spinner (#59)

* Add ability to configure status spinner

bugfix: configuration directory doesn't exist