FancyZoom isn't a free-as-in-freedom software,
and is mostly a big pile of old-school javascript.
This commit replace it with a small jquery-powered
script under MIT license.
I bumped it first to 2.X with jQuery migrate, played around but didn't manage
to trigger any warning. So I bumped it again to the latest available version,
jQuery 3.4.0, which isn't triggering useful warnings either.
Since the `border: 0;` property is applied
to every checkbox, there is no need for a class.
This is also a good opportunity to use ternaries
for the `checked` attribute, instead of clumsy `if`.
The inline javascript used with the cancel buttons
was only used to change the location.
Instead of doing this, it's easier to wrap
the button in a tag.
This is related to #909.
jvoisin
Andrew DeMaria
François-Xavier Thomas
jo
Starkad
Rémi Cocula