Rename Nreal Air driver to Xreal Air and support two newer models
- I've renamed the driver from Nreal to Xreal since the company rebranded itself some time ago (as mentioned here: #330).
- I've adjusted the naming to match the driver for the Xreal Light (here: !2145).
- I've added the product IDs from the Xreal Air 2 and the Xreal Air 2 Pro. They should work with the same driver theoretically.