Yuga-testing

Bug: error redirecting to the authorization page when you click on "Link Github" in Settings

1

### Summary Instead of redirecting to the authorization GitHub page, an error "User with 19831 already registered" appears when you click on "Link Github" in Settings ### Reproduction steps ```bash...

### Summary Button Decline doesn’t work. It is impossible to cancel an invitation that was received from another player ### Reproduction steps ```bash 1. Go to main page https://codebattle.hexlet.io/ 2....

### Summary After completing a simple battlewith no registration, a button "sign up" is appears. Clicking this button should redirect to the page for new user registration page. Now it's...