What problem does this solve or what need does it fill?

This is an example of a file which is not formatted properly. It has trailing whitespace.

crates\bevy_ui\src\render\ui.wgsl

What solution would you like?

There should be a step in the CI job which checks that wgsl files are formatted properly.

What alternative(s) have you considered?

None

Additional context

I noticed a random whitespace change in this PR caused by unformatted code being merged.