example `shadow_biases` has many shadow artefacts

[mockersf]

Bevy version

main since #16095

What you did

cargo run --example shadow_biases

What went wrong

Those artefacts used to start far away

[BenjaminBrienen]

The artifacts look kind of cool lol

[Architector4]

Same seems to be the case for the WebGL2 example on the examples page, which I assume is compiled from stable Bevy 0.15.

https://bevyengine.org/examples/3d-rendering/shadow-biases/

Code in the example explicitly sets all the shadow biases to 0 when initializing, but pressing R immediately sets it to default reasonable values. I assume this is easily fixable (or rather, made more intuitive) by just removing the lines that the biases to 0, letting the ..default() below set them?