update graphql schema

 type User {
   id: ID!
+  avatarUrl: String
   name: String
   email: String
-  profile: Profile
+  loginSecret: String
+  bio: String
+  rooms: [Room]
   createdAt: String
 }
 
-type Profile {
+type Room {
   id: ID!
-  bio: String
-  user: User
-  createAt: String
+  participants: [User]
+  categories: [Category]
+}
+
+type Category {
+  id: ID!
+  name: String
+  rooms: [Room]
+}
+
+type Message {
+  id: ID!
+  text: String
+  sender: User
 }