message: [terminal] Screen: header cleanup
diff: #include <terminal/Grid.h>
  #include <terminal/Hyperlink.h>
  #include <terminal/Image.h>
  -#include <terminal/InputGenerator.h> // MouseTransport
  #include <terminal/Parser.h>
  #include <terminal/ScreenEvents.h>
  #include <terminal/Sequencer.h>
  