[Q] completions

In [this line](https://github.com/oryband/dotfiles/blob/master/.zshrc#L54), you add `blockf` modifier:
```sh
zinit ice svn wait silent pick"init.zsh" blockf; zinit snippet PZT::modules/completion
```

Is there particular reason why you don't want [zsh-users/zsh-completions](https://github.com/zsh-users/zsh-completions) to be included?