Disable the mouse capture in the demo to allow scrolling to work (#514)

examples/interactive-demo/src/test/event.rs

@@ -2,7 +2,7 @@
 
 use crossterm::{
     cursor::position,
-    event::{read, EnableMouseCapture, Event, KeyCode},
+    event::{read, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
     execute, Result,
 };
 use std::io::Write;
@@ -28,6 +28,8 @@ where
         }
     }
 
+    execute!(w, DisableMouseCapture)?;
+
     Ok(())
 }