This allows Promises (including internal ones, like in Streams) and
FinalizationRegistry to work while scripting is disabled.
These were removed in the spec in support of WebDriver BiDi being able
to enable and disable scripting.
https://github.com/whatwg/html/commit/905b7218
This allows Fetch to work while scripting is disabled, due to its use
of Streams. This was noticeable if you disabled scripting in the UI,
or had a sandboxed iframe with scripting disabled.
There is more work to use job settings instead of realm inside these
hooks, but that's a separate issue.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/7409
Fixes https://github.com/LadybirdBrowser/ladybird/issues/3729
