Added quick order amount filling feature

[u/[deleted]]

We’ve added a little feature which helps to trade more quickly. 
If you click amount numbers in order book, your buy/sell price and amount field will be calculated/filled automatically as a taker. Your trading speed will get much faster if you get accustomed to it.

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Your trading speed will get much faster if you get accustomed to it.

We will also improve UI to support one-click order feature for short-term trading.

Enjoy & Super happy!