adding support for widget.definition.metadata

[yuriabrito]

Why?

Datadog Dashboards might have an array of metadata inside widget.definition. Right now, this is being translated into

metadata: [[Object object]]

The correct way is to create many metadata elements with their respective content inside widget.definition.

How?

Describe your solution and any technical decisions you made

UI Changes

Screenshots of the change

Before

metadata: [[Object object]]

After

metadata {
  expression = "some_expression"
  alias_name = "some_alias"
}

[laurmurclar]

Nice one, thanks so much for this!

I'll publish an update today but it might take a few hours/days to get approved by Chrome & Firefox 😊