- Set flex-flow of the list to "row wrap" to make the footer adaptive.
- Set display of the list to flex to make it clear we're using it.
This is already set in Pico CSS so it isn't necessary, but I think
it's nicer to have it set again explictly.
See here for the relevant Pico CSS code:
aaa1ffe05c/scss/components/_nav.scss (L20)
If a page is not a page bundle, it can't access files in the same
directory via the .Resources variable. So we need to detect this
condition and get the image file in another way.
jtbx
June