Allow @everyone to attach files (#266)

Author: NMertsch

scripts/configure-guild.py

@@ -323,6 +323,7 @@ def verify_permission_roles(self) -> Self:
                 "send_messages_in_threads",
                 "create_public_threads",
                 "embed_links",
+                "attach_files",
                 "add_reactions",
                 "read_message_history",
                 "use_application_commands",