Confirmation page and minor improvements to homepage and form messages

Basic redirect with flash messages for success and error messages

src/routes.rs

@@ -2,7 +2,6 @@ mod admin;
 mod health_check;
 mod home;
 mod login;
-mod register;
 mod subscriptions;
 mod subscriptions_confirm;
 
@@ -10,6 +9,5 @@ pub use admin::*;
 pub use health_check::*;
 pub use home::*;
 pub use login::*;
-pub use register::*;
 pub use subscriptions::*;
 pub use subscriptions_confirm::*;