Manual: Programming with Panda3D: Camera Control: Lenses and Field of View: setFilmSize(24,36) Typo Error?

## Description
This is taken from the [manual](https://docs.panda3d.org/1.10/python/programming/camera-control/perspective-lenses). The below function inputs should be swapped around as the width should be 36mm?

> For instance, a 35mm camera exposes a rectangle on the film about 24mm x 36mm, so if you wanted to simulate a 35mm camera, you would use lens.setFilmSize(24,36).