network: listen to NM Wired interface + use nmcli for route metrics

- Some other misc floating window change, too lazy to separate the
  commit

quickshell/Services/DMSNetworkService.qml

@@ -323,7 +323,6 @@ Singleton {
             }
         }
 
-        userPreference = state.preference || "auto";
         isConnecting = state.isConnecting || false;
         connectingSSID = state.connectingSSID || "";
         connectionError = state.lastError || "";