move src/api2/config/network.rs to src/api2/node/network.rs

So that we have the same api path for network config as pve.

src/api2/config.rs

@@ -3,11 +3,9 @@ use proxmox::list_subdirs_api_method;
 
 pub mod datastore;
 pub mod remote;
-pub mod network;
 
 const SUBDIRS: SubdirMap = &[
     ("datastore", &datastore::ROUTER),
-    ("network", &network::ROUTER),
     ("remote", &remote::ROUTER),
 ];