Add M4 Mac Mini 1.5U Mount with 1x LabStack Module

> @GarnetSunset single or dual M4 Mac Mini 10inch rack would be amazing, probably 3D printed to save on cost!
> myelectronics.nl has already showcase it's possible for 19" rack > [Link](https://www.myelectronics.nl/us/19-inch-125u-rack-mount-for-3x-mac-mini-2024.html)
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> For a 3D printed mount, it would end up being closer to 1.5U rather than the 1.25U of that mount, just to make sure there's enough material for the weight of the Mac Mini, and for a 10" rack, you wouldn't be able to get more than one Mac Mini.
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> The total opening width on the 10" rack is ~222mm (8.75"), and each M4 Mac Mini is 127mm (https://www.apple.com/mac-mini/specs/).
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> Thinking out loud, I could probably make a 1.5U mount for the M4 Mac Mini, plus a single LabStack module on its side, and MAYBE a keystone jack for the MacMini's Ethernet port and/or HDMI port. I could DEFINITELY make a 2U version, but would still only be able to add a single LabStack module, but it would allow multiple keystone jacks for the Mac Mini...
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> Let me know if there's interest, and I'll see about adding it to my list for LabStack modules (so long as Jeff doesn't mind the hijack).

_Originally posted by @JaredC01 in [#56](https://github.com/geerlingguy/mini-rack/issues/56#issuecomment-2600975826)_

Comienza revisando los diseños de montaje existentes de LabStack y la referencia enlazada del 19-inch Mac Mini; después, compáralos con las dimensiones del rack de 10-inch indicadas en este issue. Se considerará terminado cuando haya un soporte definido de 1.5U impreso en 3D que admita un M4 Mac Mini y un módulo LabStack, con todas las opciones de keystone-jack resueltas.

Escrito por el modelo de indexación a partir del texto del issue.