⭐ feat: Add protobuf (#171)

This is a second attempt to add protobuf to Nestri, after the first one
failed

---------

Co-authored-by: Philipp Neumann <3daquawolf@gmail.com>
Co-authored-by: DatCaptainHorse <DatCaptainHorse@users.noreply.github.com>

packages/server/src/args/app_args.rs

@@ -48,7 +48,10 @@ impl AppArgs {
                 .unwrap()
                 .parse::<u32>()
                 .unwrap_or(60),
-            relay_url: matches.get_one::<String>("relay-url").unwrap().clone(),
+            relay_url: matches
+                .get_one::<String>("relay-url")
+                .expect("relay url cannot be empty")
+                .clone(),
             // Generate random room name if not provided
             room: matches
                 .get_one::<String>("room")