feat!: display room name

BREAKING CHANGE: protocol now expects room name attribute

frontend/src/main/scala/industries/sunshine/planningpoker/RoomView.scala

@@ -35,7 +35,11 @@ object RoomView {
     val wsFinalDeathSignal = wsStream.closed.collect { case (_, false) => () }
 
     div(
-      className := "w-full h-full border-4 border-amber-900 flex flex-col",
+      className := "w-full h-full border-4 border-amber-900 flex flex-col relative",
+      div(
+        className := "absolute top-2 right-2",
+        child.text <-- roomStateSignal.map(st => s"Room name: '${st.roomName}'"),
+      ),
       OtherPlayers.render(roomStateSignal),
       TableView.renderTable(roomStateSignal),
       OwnHandControls.render(roomStateSignal),