#9989: another follow-up to the CSS for lists.
#9989: another follow-up to the CSS for lists.

We need to avoid the `ul.children { list-style-image: url(../inreply.png) }` rule to be inherited by sublists, as that's stronger than the user agent rules. So we have to explicitly state those user agent rules again in the stylesheet.

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@10534 af82e41b-90c4-0310-8c96-b1721e28e2e2

moreati/trac-gitsvn,moreati/trac-gitsvn,moreati/trac-gitsvn,moreati/trac-gitsvn