Feature: Display either active or inactive status in `lnk list --all`

Courtesy Feature

Give feedback with `lnk list --all` to indicate which host profiles have active links. Most likely to indicate if _inactive_ since it will apply just to host profiles.

Example:
```sh
common:
  .config/ghostty
  .zshenv

personal:
  .kube/personal.config
  .zsh/personal.zshrc

work (inactive):
  .kube/work.config
  .zsh/work.zshrc
  .zsh/work.zshenv
```