Feature request: Ability to delete duplicate users

I tried using this app during sprint planning and if a used started a new session in a new tab their old user would stay even if their tab was closed.

Eventually users started purposely adding multiple profiles of others during sprint planning and the product simply became too distracting to use.

There are multiple ways to address this. Perhaps enforce logging in or maybe just give the person who started the session the ability to kick people out.

@shaded2 Thank you very much for using my dummy app, I was busying in work so I missed your comment so long, I am so sorry!

I will try to fix this stupid bug in the near future, will update here:)

thanks @WayneYe my team and i use it for sprint planning, its very useful.