Gender information for example audio clips

[stephenmk]

Some entries in Jitendex contain example audio clips from multiple speakers, male and female. The clips are displayed identically, which I think looks a little odd. I could add gender icons (e.g. ♂ and ♀ or 男 and 女, etc.) to visually distinguish the information. I'm not sure that this info is incredibly useful, but it might help make the dictionary appear more polished.

I would need to listen to each audio clip (~10,000 of them) and mark each one as male or female.

[stephenmk]

I should also adjust the presentation of the audio clips so that the pronunciation is only displayed once. I can display the audio icons side-by-side instead of on separate lines.