Bug: Mislabeling of Github and Discord buttons on the signup page

[MrMiroLev]

Summary

On the sign-up page, the GitHub and Discord buttons are labeled with the word "Sign in," which may mislead users into thinking they are signing in rather than signing up

Environment

OS: MacOS 14.7 (23H124)
Browser: Firefox 133.0 (aarch64)
Codebattle version: bb44a99

Reproduction steps

1. Go to the signup page
2. Observe the labels on the GitHub and Discord buttons

Expected result

The buttons should be labeled "Sign up with GitHub" and "Sign up with Discord"

Actual result

The buttons are labeled "Sign in with GitHub" and "Sign in with Discord"