How to style multiline Text in SwiftUI for macOS

Issue #681

Only need to specify fixedSize on text to preserve ideal height.

The maximum number of lines is 1 if the value is less than 1. If the value is nil, the text uses as many lines as required. The default is nil.

.lineLimit(nil) // No need
.fixedSize(horizontal: false, vertical: true)

If the Text is inside a row in a List, fixedSize causes the row to be in middle of the List, workaround is to use ScrollView and vertical StackView.

Sometimes for Text to properly size itself, specify an explicit frame width