Merge pull request #106538 from stuartcarnie/macos_embedded_size_fix

macOS: Ensure LayerHost size is set when first embedded

Author: Repiteo

platform/macos/editor/embedded_process_macos.mm

@@ -137,6 +137,8 @@
 
 	Error err = ds->embed_process_update(window->get_window_id(), this);
 	if (err == OK) {
+		layer_host->set_rect(get_adjusted_embedded_window_rect(get_rect()));
+
 		// Replicate some of the DisplayServer state.
 		{
 			DisplayServerEmbeddedState state;