Cassette Light Switch Plate

Made it easier and simpler to print and removed the logos and wording.
No supports needed, just a brim.

I just needed something to print while trying out the Cura 5.0.0 and compare the times to Cura 4.13.1 using the default speed of 50.

Cura 4.13.1 = 4h18m, 25g, 8.48m
Cura 5.0.0 == 3h56m, 25g, 8.44m
Actual time = 3h51m