message: Fix too small window bug
diff: @@ -741,7 +741,7 @@ fn draw_temp_table<B: backend::Backend>(
  ) {
  let temp_sensor_data: &[Vec<String>] = &(app_state.canvas_data.temp_sensor_data);
  - let num_rows = u64::from(draw_loc.height) - 5;
  + let num_rows = max(0, i64::from(draw_loc.height) - 5) as u64;
  let start_position = get_start_position(
  num_rows,
  &(app_state.scroll_direction),
  @@ -807,7 +807,7 @@ fn draw_disk_table<B: backend::Backend>(
  f: &mut Frame<B>, app_state: &mut app::App, draw_loc: Rect,
  ) {
  let disk_data: &[Vec<String>] = &(app_state.canvas_data.disk_data);
  - let num_rows = u64::from(draw_loc.height) - 5;
  + let num_rows = max(0, i64::from(draw_loc.height) - 5) as u64;
  let start_position = get_start_position(
  num_rows,
  &(app_state.scroll_direction),
  @@ -958,7 +958,7 @@ fn draw_processes_table<B: backend::Backend>(
  // hit the process we've currently scrolled to.
  // We also need to move the list - we can
  // do so by hiding some elements!
  - let num_rows = u64::from(draw_loc.height) - 5;
  + let num_rows = max(0, i64::from(draw_loc.height) - 5) as u64;
  let position = get_start_position(
  num_rows,
  