Added comments to new functions

src/infrastructure/node_manager.zig

@@ -99,6 +99,7 @@ pub const NodeManager = struct {
         return e.Entity.NotFound;
     }
 
+    /// Runs a scan through all the nodes and returns the reference to one that is within the radius
     pub fn getHighlightedNode(self: *const NodeManager, pos: Vector2) ?*Node {
         for (self.nodes.items) |node| {
             if (node.withinRadius(pos)) return node;