update dir ; move settings from main page to settings_page

lib/pages/chat_page.dart

@@ -0,0 +1,49 @@
+import 'package:dash_chat/dash_chat.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_hbb/common.dart';
+import 'home_page.dart';
+
+
+class ChatPage extends StatelessWidget implements PageShape {
+
+  final FocusNode _focusNode = FocusNode();
+
+  @override
+  final title = "Chat";
+
+  @override
+  final icon = Icon(Icons.chat);
+
+  @override
+  final appBarActions = [];
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: MyTheme.darkGray,
+      child: DashChat(
+        focusNode: _focusNode,
+        onSend: (ChatMessage) {},
+        user: ChatUser(uid: "111", name: "Bob"),
+        messages: [
+          ChatMessage(
+              text: "hello", user: ChatUser(uid: "111", name: "Bob")),
+          ChatMessage(
+              text: "hi", user: ChatUser(uid: "222", name: "Alice")),
+          ChatMessage(
+              text: "hello", user: ChatUser(uid: "111", name: "Bob")),
+          ChatMessage(
+              text: "hi", user: ChatUser(uid: "222", name: "Alice")),
+          ChatMessage(
+              text: "hello", user: ChatUser(uid: "111", name: "Bob")),
+          ChatMessage(
+              text: "hi", user: ChatUser(uid: "222", name: "Alice")),
+          ChatMessage(
+              text: "hello", user: ChatUser(uid: "111", name: "Bob")),
+          ChatMessage(
+              text: "hi", user: ChatUser(uid: "222", name: "Alice")),
+        ],
+      ),
+    );
+  }
+}