Increase backoff duration for image fetching and limit returned prompt to first paragraph

FLUX.py

@@ -85,7 +85,7 @@ def generate_image(
     )
     logger.debug(f"Fetching image (seed={seed}): {url}")
 
-    backoff = 1
+    backoff = 1000 # equivalent to 1 second
     for attempt in range(1, MAX_RETRIES + 1):
         try:
             resp = requests.get(url, timeout=45)
@@ -140,4 +140,4 @@ def generate_image(
 
     # upload
     image_url = upload_to_imgbb(path, filename) or ""
-    return image, path, returned_prompt, image_url
+    return image, path, returned_prompt.split("\n\n", 1)[0], image_url