Everywhere: Make ByteBuffer::{create_*,copy}() OOM-safe

Author: https://github.com/alimpfard
Commit: 97e97bccab
Pull-request: https://github.com/SerenityOS/serenity/pull/9832
Reviewed-by: https://github.com/IdanHo

Userland/Libraries/LibImageDecoderClient/Client.cpp

@@ -20,7 +20,7 @@ void Client::die()
         on_death();
 }
 
-Optional<DecodedImage> Client::decode_image(const ByteBuffer& encoded_data)
+Optional<DecodedImage> Client::decode_image(const ReadonlyBytes& encoded_data)
 {
     if (encoded_data.is_empty())
         return {};