Auto merge of #97489 - GuillaumeGomez:settings-js-disabled, r=notriddle

Add sentence in case JS is disabled on settings.html page

Instead of having an empty page, it'll look like this:

![Screenshot from 2022-05-28 17-46-23](https://user-images.githubusercontent.com/3050060/170833333-e1a59c2b-27ca-47da-9c08-2356e4a689cb.png)

r? `@notriddle`

Author: bors