Update document_viewer_screen.dart

Author: ZoranJeremic

lib/ui/screens/document_viewer_screen.dart

@@ -73,7 +73,7 @@ class _DocumentViewerScreenState extends State<DocumentViewerScreen> {
               ),
             ],
           ),
-          
+
           // Pilula toolbar
           if (isKeyboardVisible)
             Positioned(
@@ -118,4 +118,4 @@ class _DocumentViewerScreenState extends State<DocumentViewerScreen> {
     _focusNode.dispose();
     super.dispose();
   }
-}
+}