Update ChatPage.cs

AwesomeUIWidgets/Assets/Scripts/ChatPage.cs

                     backgroundColor:Color.fromARGB(0,0,0,0),
                     appBar: new AppBar(
                         backgroundColor: Color.white,
+                        centerTitle: false,
                         title: new IconButton(
                             icon: new Icon(Icons.arrow_back, color: Color.black),
                             onPressed: () => { ChatPanelManager.Switch(); },