Examples: Add textured assets to webgl_loader_fbx(cleanup fbx). (#31117)

* Revert "Revert "Examples: Add textured assets to `webgl_loader_fbx`. (#31057)" (#31067)"

This reverts commit 8c66673.

* update model to clean mesh

Author: tatsuya-ogawa

examples/models/fbx/monkey.fbm/UVTexture.png

@@ -45,7 +45,9 @@
 
 			const assets = [
 				'Samba Dancing',
-				'morph_test'
+				'morph_test',
+				'monkey',
+				'monkey_embedded_texture'
 			];