`getStyleBySelector` should not be in the `Game` class

[MarcellPerger1]

getStyleBySelector should not be in the Game class! This should be in its own util file or special DOM manipulation class.

minecraft_clone_1/src/game.js

Lines 59 to 60 in 60f4b5d

	getStyleBySelectorAll(target, exact = true) {
	// TODO This should NOT be in here!

Originally posted by @MarcellPerger1 in #196 (comment)