Shelly1 DIN Mount Base Fix

I remix the original one cause it broke in pieces.

I think the mount was constructed as 4 different objects with 0 space between. When it was exported as STL, the program export that parts, but didn't "melt" them together.
So the slicer make outlines on every pcs and the mount can break on that lines, cause the pieces are not really connect to each other.
I have put the mount in meshmixer and "repaired" it.
Its more stable now, but only 97 % accurate as the original, but fit together and the clip don't break away