If all of the bugs are small, easy to fix, and not likely to result in major issues if the fix goes wrong (i.e. none of them involve re-working the page in a major way), it's probably fine to keep them in one general bug. In other words, you just want to make sure that whoever is going to fix the bugs can do so in one patch without that patch being completely overwhelming or confusing.

Hopefully that helps a bit. It never hurts to make the bugs separate, so if you're not sure, just do that. :)