Add keybinds to switch to next and previous years

[Ylaaan]

We can already switch from day to day and from month to months, it would be handy to be able to switch between years to years directly for longer term planning

[NStefan002]

Sorry for the late reply, and thank you very much for your suggestion! I am currently (when I have time) working on a config file feature - basically, when I finish that, you will be able to customize all kinds of keybindings, themes, some behavior, etc.

Until that happens, I will add mappings for jumping between years, but those will be non-modifiable, like the others.