Add a way to change the buffer delay when casting from Android to PC

Description

I see no way to change the buffer when casting from Android to PC.
The audio sometimes starting to get distorted.

Devices

Xiaomi Redmi Note 12 Pro 5G → WiFi → Mercusys MR80X → Wire → TP-Link AX1500 Wi-Fi 6 as Router → Wire → PC Wire

AudioRelay: PC: 0.27.5, Android 0.26.1