Show median value in trade statistics candle popup

[devinbileck]

The trade statistics candle popup currently shows the average, but perhaps should also show the median.

See the discussion in #2937 for more details. But to summarize, showing the median value would be beneficial for determining BSQ price for compensation request purposes. Using the median as opposed to average would ensure outlier trades would have a minimal influence on the determined price.

[niyid]

Hello. I will like to have this assigned to me. Regards.

[ripcurlx]

@niyid I just assigned you to this issue.

[niyid]

Thanks a lot ripcurlx.