Since 16e80b5ae, <body> no longer has overflow, thus no scroll. As a
consequence, htmx no longer is able to scroll up <main> when it changes
due to the default, implicit `show:true` applied to the request: is
calls <main>’s scrollIntoView, however there is nothing to scroll to.
I probably could fix it by changing the target of `show`, or even add
a `scroll` directive to all boosted links, but at this point i think it
is better no not boost links at all, as they do what i want—show the new
page from the top—with less markup, plus the browser now show a loading
animation, and it is not that slower, too.