Fix the Vivendio T-Rex meshes by using a single mesh for the T-Rex 2 and 3 (they are virtually the same dimensions anyways). Fix some of the mesh issues caused by the previous optimization and reduce the overall size.

resources/definitions/vivedino_trex2plus.def.json

@@ -25,7 +25,7 @@
     "metadata": {
         "visible": true,
         "quality_definition": "vivedino_trex2plus",
-        "platform": "vivedino_trex2.stl",
+        "platform": "vivedino_trex.stl",
         "machine_extruder_trains": {
             "0": "trex2_extruder_0",
             "1": "trex2_extruder_1"

resources/definitions/vivedino_trex3.def.json

@@ -25,7 +25,7 @@
     "metadata": {
         "visible": true,
         "quality_definition": "vivedino_trex3",
-        "platform": "vivedino_trex3.stl",
+        "platform": "vivedino_trex.stl",
         "machine_extruder_trains": {
             "0": "trex_extruder_0",
             "1": "trex_extruder_1"