update the UIView already when intializing it

This is for calculating the intrinsic size as soon as possible so that
the wrong view size doesn't impact the layout.

Author: mshibanami

Sources/ResizingTextView/TextView (UIKit).swift

@@ -49,6 +49,7 @@ struct TextView: UIViewRepresentable {
         view.textContainer.lineFragmentPadding = 0
         view.backgroundColor = .clear
         view.delegate = context.coordinator
+        updateUIView(view, context: context)
         return view
     }