Send Slash in DM USER

[Ruwin-dsc]

Which package has the bugs?

The core library

Issue description

We can't send slash in DM of User (for user install app)

Code sample

message.channel.sendSlash('990634397474643999', 'help').catch((e) => {
   console.log(e)
})

Package version

3.2.2

Node.js version

21

Operating system

Apple

Priority this issue should have

High (immediate attention needed)

Checklist

• [X] I have searched the open issues for duplicates.
• [X] I have shared the entire traceback.
• [X] I am using a user token (and it isn't visible in the code).

Additional Information

No response