core: window resizing doesn't really work on Wayland

[joshua-holmes]

When I run any example - I'll use core-triangle for instance - resizing the window does not resize the "canvas", so it just stretches and squishes everything. Not sure if this is a Wayland issue or Vulkan issue.

image:

[dysphoriac]

i think this is just because the vertex shader for this example is outputting the vertices straight to Normalized Device Coordinates, which are just drawn to the window. the coordinates go from -1 to 1 so when the window is stretched the triangle remains in the same proportion

[joshua-holmes]

Would that impact MANGOHUD in this way though?