You are part of a team tasked with developing a real$-$time messaging application similar to Slack. Using event storming, map out the key domain events and commands involved in the user journey for sending a message in the application. Identify the actors, aggregates, and policies, and illustrate how event storming helps in understanding the flow of events and interactions between different components of the system. Additionally, discuss how event storming can facilitate collaboration and alignment among team members during the development process $[5$ Marks$]$