Fix image cropping in CachedElement.open_image

Closes #83 (closed)

arkindex_worker/cache.py

@@ -79,7 +79,7 @@ class CachedElement(Model):
             bounding_box.width != self.image.width
             or bounding_box.height != self.image.height
         ):
-            box = f"{bounding_box.x},{bounding_box.y},{bounding_box.x + bounding_box.width},{bounding_box.y + bounding_box.height}"
+            box = f"{bounding_box.x},{bounding_box.y},{bounding_box.width},{bounding_box.height}"
         else:
             box = "full"