Add next mistake and previous mistake buttons #132
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The next mistake button will jump to the next move that drops in score by at least 3 points. This is a feature inspired by a similar feature in katrain, however I like the interface of ogatak more and would like to start using it instead. The previous mistake button does the same thing but goes backwards in the tree.
I set the keybinds as CTRL+SHIFT+N for next mistake and CTRL+SHIFT+P for previous mistake, but I'm open to discussing alternatives. I personally think CTRL+UP/DOWN arrows would be better, but the code that prevents scrolling makes it difficult to bind anything else to Up/Down arrows.
I also think having some kind of customization for the mistake threshold would be a good idea, I am just unsure of where that should live. For now it is hardcoded as a loss of 3 or more points.