Incorrect use of CSS outline property

[mtrebron]

In https://github.com/collective/collective.easyform/blob/master/src/collective/easyform/browser/easyform.css#L36-L38

In contrast with the border property, outline styles apply to the box as a whole. See https://developer.mozilla.org/en-US/docs/Web/CSS/outline

As-is, the declarations will be dropped by the browser. Depending on the intended effect, they can be left out or simplified to something like

.fieldFromBehavior .fieldLabel {
    outline: solid thin;
}