No clipping fill_text() outside the canvas

[ArtHome12]

This is easily seen in the example game_of_life.
If add some number to frame.height() at code below, the text will be displayed on button "Clear"

let text = Text {
    color: Color::WHITE,
    size: 14.0,
    position: Point::new(frame.width(), frame.height() **+ 30.0**),

Screenshot

[hecrj]

Related to #41.