Servers: Add edit route. Ability to set icon / banner.

src/routes/servers/mod.rs

@@ -2,7 +2,8 @@ use rocket::Route;
 
 mod server_create;
 mod server_delete;
+mod server_edit;
 
 pub fn routes() -> Vec<Route> {
-    routes![server_create::req, server_delete::req]
+    routes![server_create::req, server_delete::req, server_edit::req]
 }