Fix godot crash in SpriteFrames in the AnimatedSprite2D and 3D

(cherry picked from commit f03e744178d4dce8d607211e8c5cd8e123dcb5f5)

editor/scene/sprite_frames_editor_plugin.cpp

@@ -1808,6 +1808,7 @@ void SpriteFramesEditor::edit(Ref<SpriteFrames> p_frames) {
 	if (p_frames.is_null()) {
 		frames.unref();
 		_remove_sprite_node();
+		close();
 		return;
 	}