More statistics

[khlsvr]

Like in the original game, it would be nice if the game logged on which turn you solved the valsr. So you would see in stats that you have solved for example 12 words on the 3rd try, 20 on 4th try and so on.

Timestamp when you start to solve a valsr and when you get it solved. Add these to statistics too, as in count average times, show your best time etc. These are not in the original game but I think they would add value.

Make separate statistics for the daily words and the basic game/chain mode. For example the original game only has the daily word mode and has stats and it's nice. Currently this version accumulates stats independent in which mode you solve them.