Transmitter Box Update for Wireless powered Bambu Lab Bento Box Air Purifier for X1C / P1P

Remix of the transmitter box from Shaladdin's awesome Wireless powered BentoBox (remixed from thrutheframe's BentoBox Air Purifier for X1C). My version of the X1 Carbon (received April '23) has an extended edge which prevents installation of the original wireless transmitter box. My remix cuts that corner of the transmitter box and cover, while also moving the magnet location so that it still uses 4 magnets.

Thanks Shaladdin for the amazing wireless design and STEP files necessary to modify the transmitter.