Removes some unnecessary includes from `editor_node.h`, and instead add
those where they're used.
Removes unnecessary `editor_node.h` includes in various editor classes.
Renames `dynamicfont` to `dynamic_font` in a couple files.
Misc cleanup while jumping through that rabbit hole.
Markus Sauermann
Rémi Verschelde
Rémi Verschelde
trollodel
Hugo Locurcio
Yuri Sizov