Support user URL alias path

I've created a patch for this.

@ryangambito please use a MR instead of patches.

Ok, I have created the MR.

We have a similar issue on our project; the only difference is that the user path is overridden by the "rename_admin_paths" module. To make it work properly, it is better to get the path from the user's canonical route.

Attaching the path with the latest updates.

Thanks @tbkot, that sounds really good! I'd like to wait for some community feedback before merging this. Totally best would be to have test coverage for the module for a better sleep...