Card separation by type

lib/ui_widgets/media_control_card.dart

@@ -0,0 +1,27 @@
+part of '../main.dart';
+
+class MediaControlCardWidget extends StatelessWidget {
+
+  final HACard card;
+
+  const MediaControlCardWidget({
+    Key key,
+    this.card
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    if ((card.linkedEntity!= null) && (card.linkedEntity.isHidden)) {
+      return Container(width: 0.0, height: 0.0,);
+    }
+    List<Widget> body = [];
+    return Card(
+        child: new Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          mainAxisSize: MainAxisSize.min,
+          children: body
+        )
+    );
+  }
+
+}