## About The Pull Request
All usages of world.icon_size in code have been replaced with new
`ICONSIZE_X`, `ICONSIZE_Y` and `ICONSIZE_ALL` defines depending on
context
Replaces some "32" magic numbers with the defines
A few bits of code have been modified to split up x/y math as well
## Why It's Good For The Game
Magic number bad, code more readable, code more flexible and I'm told
there's an access cost to doing world.icon_size so minor performance
gains
## Changelog
🆑 tonty
code: made some code relating to the world's icon size more readable
/🆑
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Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
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