[Texture Import] Fix invert color

editor/import/resource_importer_texture.cpp

@@ -431,8 +431,8 @@ Error ResourceImporterTexture::import(const String &p_source_file, const String
 		int width = image->get_width();
 
 		image->lock();
-		for (int i = 0; i < height; i++) {
-			for (int j = 0; j < width; j++) {
+		for (int i = 0; i < width; i++) {
+			for (int j = 0; j < height; j++) {
 				image->set_pixel(i, j, image->get_pixel(i, j).inverted());
 			}
 		}