make the survey nav arrow buttons a little bigger
make the survey nav arrow buttons a little bigger

bloom/mixpanel-osx-unofficial,senselabs/mixpanel-iphone,jlukanta/mixpanel-iphone,senselabs/mixpanel-iphone,jlukanta/mixpanel-iphone,jlukanta/mixpanel-iphone,senselabs/mixpanel-iphone,senselabs/mixpanel-iphone,senselabs/mixpanel-iphone,senselabs/mixpanel-iphone