add resolution to FPS display

GitOrigin-RevId: c414668d05

Jumpy.Shared/JumpyGame.cs

@@ -93,7 +93,8 @@ namespace Jumpy {
       Rectangle drawRect = new Rectangle(
         0, 0, GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height);
       spriteBatch.Draw(renderTarget, drawRect, Color.White);
-      string fpsText = $"FPS: {fpsCounter.Fps:F1}";
+      string fpsText = $"{GraphicsDevice.Viewport.Width}x{GraphicsDevice.Viewport.Height}, " +
+        $"{fpsCounter.Fps:F1} FPS";
       spriteBatch.DrawString(font, fpsText, new Vector2(10, 10), Color.White);
       spriteBatch.End();