fix: correct attachment link in prompt-input docs

[SSShogunn]

Fix broken link for Attachment component in prompt-input docs

What

Fixes an incorrect link in the Attachments section of the prompt-input documentation.

Before: /components/attachment
After: /components/attachments

Why

The link was pointing to a non-existent route (/components/attachment) instead of the correct one (/components/attachments), causing a broken navigation experience for users trying to find the Attachment component docs from the prompt-input page.

Changes

• apps/docs/content/components/(chatbot)/prompt-input.mdx — updated the hyperlink in the Attachments section to use the correct plural path (/components/attachments)

Testing

• Verified the corrected link navigates to the Attachment component documentation as expected

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