Fix wifi-dialog (#1921)

As [discovered
here](tiny-pilot/tinypilot-pro#1618 (comment)),
we've broken the wifi-dialog via
#1902.

The issue is that we've previously changed the output of the
`/api/network/status` endpoint to return a list of network interfaces,
but we forgot to update the endpoint's usage in wifi-dialog.

This PR fixes the usage of the `/api/network/status` endpoint in
wifi-dialog.

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Author: jdeanwallace

app/templates/custom-elements/wifi-dialog.html

@@ -289,10 +289,13 @@ <h3>Wi-Fi Credentials Removed</h3>
             wifiSettings.countryCode || "US";
           this._elements.pskInput.value = "";
           this._initialWiFiSettings = { psk: "", ...wifiSettings };
-
+          // Show ethernet warning when no ethernet interfaces are connected.
           this._elements.noEthernetWarning.hide();
           this._elements.inputError.hide();
-          if (!networkStatus.ethernet.isConnected) {
+          const noEthernetConnected = networkStatus
+            .filter((iface) => iface.name.startsWith("eth"))
+            .every((iface) => !iface.isConnected);
+          if (noEthernetConnected) {
             this._elements.noEthernetWarning.show();
           }