Unsupported lovelace cards showing entities

lib/ui_widgets/card_header_widget.dart

@@ -0,0 +1,25 @@
+part of '../main.dart';
+
+class CardHeaderWidget extends StatelessWidget {
+
+  final String name;
+
+  const CardHeaderWidget({Key key, this.name}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    var result;
+    if ((name != null) && (name.trim().length > 0)) {
+      result = new ListTile(
+        title: Text("$name",
+            textAlign: TextAlign.left,
+            overflow: TextOverflow.ellipsis,
+            style: new TextStyle(fontWeight: FontWeight.bold, fontSize: 25.0)),
+      );
+    } else {
+      result = new Container(width: 0.0, height: 0.0);
+    }
+    return result;
+  }
+
+}