feat: add recipient roles (#716)

Fixes #705

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Co-authored-by: Lucas Smith <me@lucasjamessmith.me>
Co-authored-by: David Nguyen <davidngu28@gmail.com>

packages/ui/primitives/document-flow/add-subject.tsx

@@ -110,7 +110,6 @@ export const AddSubjectFormPartial = ({
 
               <Input
                 id="subject"
-                // placeholder="Subject"
                 className="bg-background mt-2"
                 disabled={isSubmitting}
                 {...register('meta.subject')}