More wrappers, more cleanup

src/main.zig

@@ -101,7 +101,7 @@ pub fn main() !void {
     std.log.debug("Exitted the game loop", .{});
 
     for (swapchain.swapchain_images) |x| engine.waitForFence(x.fence) catch {};
-    engine.device.deviceWaitIdle() catch {};
+    engine.deviceWaitIdle() catch {};
 }
 
 const CallbackContext = struct {