Avoid conflicts having "In-page EPUB footnotes (smaller)"
affects FB2 documents that use "<a type=note>12</a>" which
would then get smaller if both tweaks are enabled (which
they are, by default).
Also switch "-cr-hint: strut-confined" from being set on "*"
to being set only on "body", now that it is inherited.
Footnote popups: add styles for some non-HTML FB2 tags,
so MuPDF can render them as expected.
cc653ef5b0