WIP #523 and connection settings refactoring

lib/pages/quick_start.page.dart

@@ -0,0 +1,53 @@
+part of '../main.dart';
+
+class QuickStartPage extends StatefulWidget {
+  QuickStartPage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _QuickStartPageState createState() => new _QuickStartPageState();
+}
+
+class _QuickStartPageState extends State<QuickStartPage> {
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: new AppBar(
+        leading: IconButton(
+          icon: Icon(Icons.close),
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+        ),
+        title: Text('Quick start'),
+        actions: <Widget>[
+          IconButton(
+            icon: Icon(Icons.help),
+            onPressed: () {
+              Launcher.launchURLInCustomTab(
+                context: context,
+                url: 'https://ha-client.app/help'
+              );
+            },
+          )
+        ],
+      ),
+      body: ConnectionSettingsPage(
+        quickStart: true,
+      )
+    );
+    
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+  }
+}