Fixed memory leaks

src/infrastructure/node_manager.zig

@@ -93,7 +93,7 @@ pub const NodeManager = struct {
     }
 
     /// Removes the node from the list with all appropriate checks
-    pub fn remove(self: *NodeManager, node_to_remove: *Node) !void {
+    pub fn remove(self: *NodeManager, allocator: std.mem.Allocator, node_to_remove: *Node) !void {
         // In case the node has references to the existing roads we can not remove it
         // This also means we don't have to deinit it, since it has no elements
         if (node_to_remove.roads.items.len > 0) return;
@@ -101,6 +101,7 @@ pub const NodeManager = struct {
         for (self.nodes.items, 0..) |*node, i| {
             if (node.id != node_to_remove.id) continue;
 
+            node.deinit(allocator);
             _ = self.nodes.swapRemove(i);
             return;
         }