fix(status): end pr status with a single line break

pr status printed a blank line after its last section.

Signed-off-by: bircni <bircni@icloud.com>

internal/app/status_test.go

@@ -111,6 +111,5 @@ Assigned to you
 
 Requesting a code review from you
   Nothing here
-
 `, stripLinks(out.String()))
 }