The `scrollTo` method and related utils (jQuery animate, ...) were not
properly adapted to work in the context of multiple documents. E.g. the
website editor code (outside the website iframe) is calling the
`scrollTo` util to scroll to added snippet elements (inside the website
iframe). In that case, the util was performing some searches in the DOM
outside of the website iframe while it was meant to be done inside. The
result was that the scroll was not considering the website fixed navbar
and scrolled "too far".
Another bug is visible only when the scrollbar is left to be the natural
browser one (not on the `#wrapwrap`). In that case, the `scrollTo` util
simply had no effect anymore as the `animate` override of jQuery was not
adapted.
Note: a further commit will move back the scrollbar behavior out of the
`#wrapwrap`, this is thus especially needed.
X-original-commit: ab417de98068afaaa12995726c7c6445f075ca4f
Part-of: odoo/odoo#102785
qsm-odoo
09ef0e4663