discord reg without web fix double

src/main/java/app/services/db/DiscordAuthService.java

@@ -64,7 +64,7 @@ public class DiscordAuthService {
     }
 
     public SteamID fetchRegUUIDFromGameChat(UUID uuid) {
-        return jdbcTemplate.query("select account_id from user_messages where message like ? limit 1",
+        return jdbcTemplate.query("select account_id from user_messages where extract(epoch from now()) - utime < 300 and message like ? order by id asc limit 1",
                 new Object[]{uuid.toString()}, (rs, n) -> rs.getLong("account_id"))
                 .stream()
                 .map(SteamIDConverter::getSteamID)