Makes the audio button 30x30 and bordered so it's easier to press
当前为
Wanikani Audio Button Sizer
by Hunter Pankey
The button to press to play the audio sample is way too small. It's bounded
by the size of the speaker icon that's displayed by default. This changes it
30x30 pixels with a black border to signify that the clickable/tappable area
is significantly larger.
