More progress on themes + workspace resize handles support

Still need to add support for centered resize of boxes with the handles. (Will need a different alignment configuration)

Theme manipulation is getting cleaned up iteratively code is slowly looking less nosiy

code/ui_box.odin

@@ -124,7 +124,7 @@ ui_box_make :: proc( flags : UI_BoxFlags, label : string ) -> (^ UI_Box)
 	parent := stack_peek( & parent_stack )
 	if parent != nil
 	{
-		when false {
+		when true {
 			dll_full_push_back( parent, curr_box, nil )
 		}
 		else