I need a flutter chatting page, you can chat with your friends that you have in my padel app $,$ use fire base $,$ Make a good simple design and make it work, i need a ful Code and what should the main.dart be Make every step clear ofwhich class im using and without erRors this.sender and this.text has error I want no errors please $,$ and i dont need a sign in page, just the chatting page and make it woRk i want in the chatting page has a button to choose which friend u want to chat then enter the messaging page for this friend and you can make a group of friends chatting. It should get ur friend list from the friends you added $,$ so it should check ur friends and then display them Make sure it has a good simple design and work, in conclusion i want the main page of the chatting to be a list of chats or a $+$sign to create no chat, then a messaging page to be the message you choose so there you can send the messages and recieve them $,$ i want What all classes would be written In seperate and organized $!$