Implemented msw_rescale_word_local_combo()

for scaling of the coordinate system combobox

src/slic3r/GUI/Field.cpp

@@ -1043,6 +1043,7 @@ void StaticText::msw_rescale()
     {
         wxStaticText* field = dynamic_cast<wxStaticText*>(window);
         field->SetSize(size);
+        field->SetMinSize(size);
     }
 }