const (
// Subcommand is the name of the subcommand. Subcommand = "serve"
// Short is the short description of the subcommand. Short = "Serve the application"
)
Serve is a function that starts the server and handles incoming requests.
It initializes the HTML template engine, sets up routes, and listens on port 8080.
The function returns an error if there is an issue starting the server.