brakes

Hi all, I just bought Volvo V40 T4 2016 I would like to order brakes set, does someone knows the sizes? And if you have a recommendation for brakes set it will be great :)

My brake pedal now is very hard to press and feels like the brakes are rubbing. But I only noticed this pipe disconnected after seeing someone else's post. Can anyone help? It's that plastic cap/connector with 34 on it. Cheers!