Modify filepath for fallback image

static/default_apod_object.json

@@ -1,7 +1,7 @@
 {
   "explanation": "This is a fallback image used in the case where there is a missing/corrupted asset on apod.nasa.gov. Image source: https://en.wikipedia.org/wiki/File:Black_Hole_in_the_universe.jpg",
-  "hdurl": "https://api.nasa.gov/planetary/apod/apod/static/default_apod_image.jpg",
+  "hdurl": "https://api.nasa.gov/planetary/apod/static/default_apod_image.jpg",
   "media_type": "image",
   "title": "Default Image",
-  "url": "https://api.nasa.gov/planetary/apod/apod/static/default_apod_image.jpg"
+  "url": "https://api.nasa.gov/planetary/apod/static/default_apod_image.jpg"
 }