Modify Disconnected format

As a fetcher, I would like to match the format below to help make the configuration and management of disconnected hosts easier so we don't have to change the format in the picture.

AC:
Verify we match @sallyom suggestion

```
disconnected: true
device: /dev/sdb1
images:
schedule: "*/1 * * * *"
- name: image2
imagePath: images/image.tar
- name: colors
imagePath: colors/image.tar
- name: orange
imagePath: horsey/image.tar
targetConfigs:
- name: fetchit
raw:
- name: raw-ex
targetPath: examples/raw
schedule: "*/1 * * * *"
pullImage: false
branch: ci```