message: Complete `Button` in `iced_pure`
diff: @@ -35,8 +35,38 @@ impl<'a, Message, Renderer> Button<'a, Message, Renderer> {
  }
  }
  - pub fn on_press(mut self, on_press: Message) -> Self {
  - self.on_press = Some(on_press);
  + /// Sets the width of the [`Button`].
  + pub fn width(mut self, width: Length) -> Self {
  + self.width = width;
  + self
  + }
  +
  + /// Sets the height of the [`Button`].
  + pub fn height(mut self, height: Length) -> Self {
  + self.height = height;
  + self
  + }
  +
  + /// Sets the [`Padding`] of the [`Button`].
  + pub fn padding<P: Into<Padding>>(mut self, padding: P) -> Self {
  + self.padding = padding.into();
  + self
  + }
  +
  + /// Sets the message that will be produced when the [`Button`] is pressed.
  + ///
  + /// Unless `on_press` is called, the [`Button`] will be disabled.
  + pub fn on_press(mut self, msg: Message) -> Self {
  + self.on_press = Some(msg);
  + self
  + }
  +
  + /// Sets the style of the [`Button`].
  + pub fn style(
  + mut self,
  + style_sheet: impl Into<Box<dyn StyleSheet + 'a>>,
  + ) -> Self {
  + self.style_sheet = style_sheet.into();
  self
  }
  }
  