Nightly version cut off in scaladoc

It renders as `3.3.0-RC1...` instead of `3.3.0-RC1-bin-20221224-6f5bb34-NIGHTLY`

![](https://user-images.githubusercontent.com/3119428/209508343-a787429b-1a9f-4d43-a448-7408decf7816.png)

The problem is the CSS `width` is not wide enough.
https://github.com/lampepfl/dotty/blob/6f5bb3494f7ad69cbf2eff1fb012b65b7af3cc2d/scaladoc/resources/dotty_res/styles/theme/layout/header.css#L71