[paulo_crash]

Suggestions:
- Check if the player is in the group and is not automatically inviting it to the group;

I updated the translations as well, added the language pt:

"Phrases"
{
	"JoinSteam"
	{
		"en"		"[SWGM] First join our Steam group!"
		"pt"		"[SWGM] Primeiro, junte-se ao nosso Grupo Steam!"
		"ru"		"[SWGM] Сначала вступите в нашу Steam группу!"
		"fr"		"[SWGM] En premier, rejoignez notre groupe Steam!"
	}
}