Following the winit 0.29 merge, a few adjustments are in order:
- Make slint::Window.set_size() before show keep the size
- on wasm, attempt to keep the size of the canvas from CSS
- on wasm, one must set the width and height explicitly on the canvas
otherwise there is wierd scaling
- on wasm, we can't set None as maximum or minimum size otherwise winit
panics
- It seems that the hack we had to keep the size in range is no longer
necessary
- The hack in the slide puzzle can be removed. (but unfortunately it
doesn't follow resizes
Unfortunatelly we always call set_inner_size to avoid infinite loop when
the css properties are not specificed, so this will override layouts
Also we don't default anymore to the preferred size
* Update internal/backends/winit/winitwindowadapter.rs
