Do not do the infinite usable rect, that's dumb

We need a better solution to stop popups from trying to fit themselves.
The compositor will do that for them but they don't know. The popups are
blinded by their power.

platform/linuxbsd/wayland/display_server_wayland.cpp

@@ -475,8 +475,7 @@ Size2i DisplayServerWayland::screen_get_size(int p_screen) const {
 
 Rect2i DisplayServerWayland::screen_get_usable_rect(int p_screen) const {
 	// Unsupported on wayland.
-	// DEBUG: Test
-	return Rect2i(Point2i(-(INT32_MAX / 2), -(INT32_MAX / 2)), Size2i(INT32_MAX, INT32_MAX));
+	return Rect2i(Point2i(), screen_get_size(p_screen));
 }
 
 int DisplayServerWayland::screen_get_dpi(int p_screen) const {