EuiDescribedFormGroup should not require children

[cjcenizal]

There are cases where we could want to use this component for layout purposes, where children needs to be empty. Here's an example, where the empty EuiDescribedFormGroup is used to present a "hide/show" button, which reveals additional content below it.

When open it looks like this:

[thompsongl]

In the case above, is the button not passed to the row as children? What layout properties of the empty EuiFormRow are important to this case?

[cjcenizal]

@thompsongl Ah, sorry, I meant EuiDescribedFormGroup, not EuiFormRow. I've updated the title and description. EuiDescribedFormGroup accepts description (rendered on the left side) and children (rendered on the right side). In the screenshot, the button is provided as part of the description.

[thompsongl]

Ah, yeah, that makes more sense.