Update print statement from 'Hello' to 'Goodbye'

Author: Twiddllo

backend/app.py

@@ -31,7 +31,7 @@ class Settings(BaseSettings):
     ALGORITHM: str = "HS256"
     ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
     REFRESH_TOKEN_EXPIRE_DAYS: int = 7
-    CORS_ORIGINS: list[str] = ["http://localhost:5173", "http://localhost:3000", "http://localhost:80", "http://localhost"]
+    CORS_ORIGINS: List[str] = ["http://localhost:5173", "http://localhost:3000", "http://localhost:80", "http://localhost"]
     SSH_KEY_PATH: str = os.path.expanduser("~/.ssh")
     AGENT_SECRET: str = "nexusctrl-agent-secret"