add ScreenContentWrapper and ScreenFooter for Windows

Author: kligarski

src/components/ScreenContentWrapper.windows.tsx

@@ -0,0 +1,5 @@
+import { View } from 'react-native';
+
+const ScreenContentWrapper = View;
+
+export default ScreenContentWrapper;

src/components/ScreenFooter.windows.tsx

@@ -0,0 +1,7 @@
+import { View } from 'react-native';
+
+const ScreenFooter = View;
+const FooterComponent = View;
+
+export default ScreenFooter;
+export { FooterComponent };