Quiet RG35XXSP Membrane Inserts - Thinner Variant

I found that both the 0.8mm and 0.6mm variants of @8BitDrip_2287972's RG35XXSP Membrane Inserts were too thick, so I used Blender to make an even thinner 0.4mm variant. I find this thinner variant works very well in my RG35XXSP and feels considerably better than using tape.

Like the original, I printed it at 0.1mm layer height.

I strongly recommend using TPU for this print.

NOTE: At some point, Anbernic updated the RG35XXSP to fix the loud buttons (sometime around when they released the red, green, and white models). This print is likely unneeded for the fixed RG35XXSP.

Reduced thickness to 0.4mm while leaving the circular sockets unchanged