fix(critical): adding an alias overwrites nginx mapping

[mendesmaicon]

When adding an alias, OS tries to validate the alias and ends up overwriting /app/conf/nginx/mapping/primary.conf.

As a result, all previous mappings are removed and replaced by the validation block below:

location = /validateOwnership {
	add_header Content-Type text/html;
	return 200 "79a3e1cfd303ccfe9d7eda02b43dd4855191fa2312ef78d5c4a32b13111441e8";
}

[ntorga]

Ok, important info for this:

• The aliases must be pointing to the server;
• The mapping will only be overwritten when the SSL issue process starts.