Fix formatting

Author: Tkaixiang

lib/cadet_web/helpers/ai_comments_helpers.ex

@@ -12,13 +12,15 @@ defmodule CadetWeb.AICommentsHelpers do
 
         case Base.decode64(encrypted_key) do
           {:ok, decoded} ->
-            with [iv, tag, ciphertext] <- :binary.split(decoded, <<"|">>, [:global]) do
-              case :crypto.crypto_one_time_aead(:aes_gcm, key, iv, ciphertext, "", tag, false) do
-                plain_text when is_binary(plain_text) -> {:ok, plain_text}
-                _ -> {:decrypt_error, :decryption_failed}
-              end
-            else
-              _ -> {:error, :invalid_format}
+            case :binary.split(decoded, <<"|">>, [:global]) do
+              [iv, tag, ciphertext] ->
+                case :crypto.crypto_one_time_aead(:aes_gcm, key, iv, ciphertext, "", tag, false) do
+                  plain_text when is_binary(plain_text) -> {:ok, plain_text}
+                  _ -> {:decrypt_error, :decryption_failed}
+                end
+
+              _ ->
+                {:error, :invalid_format}
             end
 
           _ ->