Switcharoo on detecting ThreadSafeISBRHFactory... (#318)

other method apparently wasn't working

src/main/java/com/gtnewhorizons/angelica/mixins/early/sodium/MixinRenderingRegistry.java

@@ -45,7 +45,7 @@ private Object getWrapped(Map<Integer, ISimpleBlockRenderingHandler> instance, O
                         throw new RuntimeException(e.getCause());
                     }
                 });
-            } else if (mainThreadHandler.getClass().isInstance(ThreadSafeISBRHFactory.class)) {
+            } else if (ThreadSafeISBRHFactory.class.isAssignableFrom(mainThreadHandler.getClass())) {
                 return THREAD_LOCAL_MAP.get().computeIfAbsent(mainThreadHandler.getClass(), k -> ((ThreadSafeISBRHFactory) mainThreadHandler).newInstance());
             }
         }