[Bug]: CoD4x standard config outdated and other bugs

### User story

i tried to use the linux gsm config files for cod4x like cod4server.cfg, secrets-common.cfg etc. but it fails

### Game

Call of Duty 4

### Linux distro

Ubuntu 20.04

### Command

command: start

### Further information

seems that the configs get false interpreted
also standard config for CoD4x seems to be littlebit outdated

### Relevant log output

```shell
Error! Unknown command: ./cod4 sv_authtoken
common.cfg: line 7: sv_authtoken: command not found
server.cfg: line 6: //: Is a directory
server.cfg: line 7: //: Is a directory
server.cfg: line 8: syntax error near unexpected token `(’
```

### Steps to reproduce

Just use the standard linuxgsm setup and install for cod4x and try to use the lgsm configs