TimeZone stage allmost done.

src/main.rs

@@ -184,7 +184,12 @@ fn update(k_state: &mut KiraState, message: Message) -> Task<Message> {
                         iced::exit()
                     }
                     StageAction::Abort(_) => iced::exit(),
-                    StageAction::Back => iced::exit(),
+                    StageAction::Back => {
+                        k_state.config.config_trail.pop();
+                        k_state.current_view =
+                            Views::Network(network::NetworkStage::new(&k_state.toml_config));
+                        Task::done(Message::Network(network::Message::CheckNetwork))
+                    }
                     StageAction::None => Task::none(),
                 }
             } else {