Implemented relations displaying mode

src/infrastructure/node_manager.zig

@@ -26,6 +26,7 @@ pub const NodeManager = struct {
     /// Deinitialises every node (pointer) within the list and then deinits the list containing the nodes itself
     pub fn deinit(self: *NodeManager, allocator: std.mem.Allocator) !void {
         for (self.nodes.items) |node| {
+            node.roads.clearRetainingCapacity();
             try node.deinit(allocator);
         }
         self.nodes.deinit(allocator);