Home Assistant release with the issue:
0.99.2
Description of problem:
When deleting a user, there "Are you sure" prompt is missing a question mark at the end. Easy issue for Hacktoberfest.

Hi! I'd like to work on this issue for Hacktoberfest
If you run into issues hit us up on Discord
Hi, after setting everything up unfortunately it looks like someone already fixed this issue: https://github.com/home-assistant/home-assistant-polymer/pull/3869
Well you're setup now, so that's awesome! Take a look at other Hacktoberfest issues. Most are pretty good for newcomers and if a bit too much others always willing to help with suggestions.
Most helpful comment
Well you're setup now, so that's awesome! Take a look at other Hacktoberfest issues. Most are pretty good for newcomers and if a bit too much others always willing to help with suggestions.