* feat: support syncing aliases
This is definitely not yet finished, but works for zsh right now.
TODO:
1. Support other shells
2. Cache the alias generation, so we don't have to do a bunch of work at
shell init time
* correct imports
* fix clippy errors
* fix tests
* add the other shells
* support xonsh
* add delete
* update rust, then make clippy happy once more
* omfg fmt too
