Some browsers does not seem to obey `scrollIntoView({ behavior: "instant" })` if in iframe

[chrisjsewell]

The code that ensures the target is visible within the iframe is:

sphinx-peek/src/sphinx_peek/assets/sphinx_peek.js

Line 218 in ebe276a

element.scrollIntoView({ behavior: "instant" });

This appears to work correctly in Firefox, but Chrome / Safari seems to ignore it?

with Firefox (121.0 on OSX arm64), the is no scroll:

with Chrome (120.0.6099.216 on OSX arm64) and Safari (17.2.1) , the scolling still occurs: