feat : add winner to endGame event

Related to heronfief/front#71

src/games/services/games.service.ts

@@ -288,7 +288,7 @@ export class GameService {
     });
     await game.save({ session });
     if (game.teams.length <= 1) {
-      await this.endGame(game, session);
+      await this.endGame(game, game.teams[0], session);
       return false;
     }
     return true;
@@ -359,10 +359,12 @@ export class GameService {
   @WithTransaction
   async endGame(
     game: Document<Game> & Game,
+    winner: Team,
     session?: mongoose.mongo.ClientSession,
   ) {
     this.eventEmitter.emit('sse.game.' + game._id.toHexString(), {
       type: 'endGame',
+      winner: winner._id.toHexString(),
     });
     await game.deleteOne({ session });
   }