Transmissive material doesn't allow light through

## Bevy version
0.13

## Relevant system information
`cargo 1.77.0-nightly (1ae631085 2024-01-17)`

`AdapterInfo { name: "Apple M1 Pro", vendor: 0, device: 0, device_type: IntegratedGpu, driver: "", driver_info: "", backend: Metal }`

## What you did

Spawned a cube with this material:

```rust
materials.add(StandardMaterial {
base_color: Color::Rgba { red: 0.455, green: 1.0, blue: 0.905, alpha: 1.0 },
specular_transmission: 0.95,
diffuse_transmission: 0.0,
thickness: 1.8,
ior: 1.0,
perceptual_roughness: 0.05,
reflectance: 0.5,
..default()
});
```

Then aimed a spot light at it.

This is the spot light:

```rust
SpotLightBundle {
spot_light: SpotLight {
color: Color::WHITE,
intensity: 5000000.0,
range: 200.0,
radius: 1.5,
shadows_enabled: true,
outer_angle: 0.2,
inner_angle: 0.05,
..Default::default()
},
visibility: Visibility::Hidden,
transform: *flashlight_origin_transform,
..Default::default()
};
```

## What went wrong

Point light doesn't go through it as it should (I think).

https://github.com/bevyengine/bevy/assets/72827992/221cdf41-9dbb-496b-b528-ae9a855bf4c9

Start by reproducing the issue with the provided StandardMaterial and SpotLightBundle setup on the reported Bevy version and Apple Metal environment. Trace the material transmission and light behavior from that reproduction; done means light passes through the transmissive cube as expected.

Written by the indexing model from the issue text.