fix(api): accept empty decrypted plaintext

packages/native_crypto/lib/src/ciphers/aes/aes.dart

@@ -288,13 +288,6 @@ class AES implements Cipher<AESCipherChunk> {
       );
     }
 
-    if (bytes.isEmpty) {
-      throw NativeCryptoException(
-        code: NativeCryptoExceptionCode.invalidData,
-        message: 'Platform returned no data on chunk #$count',
-      );
-    }
-
     return bytes;
   }
 }

packages/native_crypto/lib/src/core/constants/constants.dart

@@ -6,8 +6,13 @@
 
 abstract class Constants {
   /// The default chunk size in bytes used for encryption and decryption.
+  /// 
+  /// ~32MB
   static const int defaultChunkSize = 33554432;
 
+  /// The length of the initialization vector in bytes used for AES GCM.
   static const int aesGcmNonceLength = 12;
+
+  /// The length of the tag in bytes used for AES GCM.
   static const int aesGcmTagLength = 16;
 }