Fix unable to approve confessions

Author: yiays

extensions/confessions_moderation.py

@@ -292,7 +292,7 @@ async def on_confession_review(self, inter:discord.Interaction):
 
     if accepted:
       try:
-        if inter.message.embeds[0].image:
+        if inter.message.embeds[0].image.url:
           await pendingconfession.add_image(url=inter.message.embeds[0].image.url)
         elif (
           len(inter.message.attachments) and