py/gtk3-manage-domains: List active nginx vhosts and check them against Lets Encrypt active certificates

List active nginx vhosts and check them against Lets Encrypt active certificates

Benoît Hubert fbe6ee3462 Create root entry first to avoid KeyError		7 lat temu
gtk3-listdomains.py	fbe6ee3462 Create root entry first to avoid KeyError	7 lat temu
nginxparser.py	0a274aa031 Parse enabled nginx vhosts	7 lat temu