minor language change, since not actually logged out

public/language/en_GB/login.json

@@ -8,5 +8,5 @@
 	"failed_login_attempt": "Login Unsuccessful",
 	"login_successful": "You have successfully logged in!",
 	"dont_have_account": "Don't have an account?",
-	"logged-out-due-to-inactivity": "You have been logged out due to inactivity"
+	"logged-out-due-to-inactivity": "You have been logged out of the Admin Control Panel due to inactivity"
 }