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• This pull request was assisted by AI, but you wrote the final code
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Summary

Changed DiscordMessageFile to DiscordFile to be a more generic container for future use outside of the DiscordMessageBuilder and solved inconsistencys.

Details

Most of the AddFileOptions handling was moved to the build of the multipart request. The behaviour of the AddFileOptions remains the same.

Changes proposed

• Renamed DiscordMessageFile to DiscordFile
• Moved reset stream logic into the build request method and solved inconsistent stream resetting.
• Added support for AddFileOptions.CloseStream and AddFileOptions.ResetStream outside of the MessageBuilder

Notes

• All features in this pull request were tested.