GFIntroScreen and GFIntroScreenBottomNavigationBar completed

Author: deepikahr

lib/components/intro_screen/gf_intro_screen.dart

@@ -77,6 +77,7 @@ class GFIntroScreen extends StatefulWidget {
   /// defines [GFIntroScreen] height
   final double height;
 
+
   /// defines [GFIntroScreen] width
   final double width;