the printer slicer expects mm (#3341)

* the printer slicer expects mm

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* empty

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/components/ModelingMachineProvider.tsx

@@ -388,7 +388,8 @@ export const ModelingMachineProvider = ({
               },
             },
             storage: 'ascii',
-            units: defaultUnit.current,
+            // Convert all units to mm since that is what the slicer expects.
+            units: 'mm',
             selection: { type: 'default_scene' },
           }