Dashy

[BrokenOnedroid]

To ease and accelerate the PR submission, please use the template below to provide all requested information.
You can find guidelines on which docker image to use in the Rockstor's documentation,
as well as examples of proper formatting in other rock-ons (here
and here)

Fixes # .

General information on project

This pull request proposes to add a new rock-on for the following project:

• name: dashy
• website: https://dashy.to/
• description: A dashboard application. Can be used as a collection, e.g. of installed Rockons. Or widgets can be added for additional information.

It can look something like this:

Information on docker image

• docker image: https://hub.docker.com/r/lissy93/dashy
• is an official docker image available for this project?: Yes

Checklist

• Passes JSONlint validation
• Entry added to root.json in alphabetical order (for new rock-on only)
• "description" object lists and links to the docker image used
• "description" object provides information on the image's particularities (advantage over another existing rock-on for the same project, for instance)
• "website" object links to project's main website