startup steam on server aswell

crates/server/src/main.rs

@@ -100,6 +100,7 @@ fn main() {
     app.add_plugins(heal_effect::plugin);
     app.add_plugins(tb_entities::plugin);
     app.add_plugins(explosions::plugin);
+    app.add_plugins(steam::plugin);
 
     app.init_state::<GameState>();