qml: wrap long server names (e.g tor onion address)

electrum/gui/qml/components/NetworkOverview.qml

@@ -54,10 +54,10 @@ Pane {
                     text: qsTr('Server:');
                     color: Material.accentColor
                 }
-                RowLayout {
                 Label {
                     text: Network.server
-                    }
+                    wrapMode: Text.WrapAnywhere
+                    Layout.fillWidth: true
                 }
                 Label {
                     text: qsTr('Local Height:');