SMenu、SHeader在界面最大化的时候，高、宽没有跟随界面变化

[grzeng-go]

[syf20020816]

请注意，这并不是issue
请仔细阅读Slint对原生Window内置组件的描述：
The Window geometry will be restricted by its layout constraints: Setting the width will result in a fixed width, and the window manager will respect the min-width and max-width so the window can’t be resized bigger or smaller. The initial width can be controlled with the preferred-width property. The same applies to the Windows height.
意思是Window受到布局约束，它的宽度由min-width和max-width进行限定，因此它无法被重置大小，它的初始化由preferred-width控制，它的高也一样

[syf20020816]

若你想要获取Window最大化后的大小可以使用API：
pub fn size(&self)->PhysicalSize
或尝试使用重绘：
pub fn request_redraw(&self)

[syf20020816]

https://slint.dev/releases/1.3.2/docs/rust/slint/struct.Window