fix: element visible race condition (#1996)

On larger documents we could accidentally start trying to render fields
while not all pages of the PDF have loaded due to us checking for a
single page existing. This would cause an error to be thrown, hard
locking those documents.

This change resolves this by grabbing the highest page number from the
given fields and using it for the visibility check instead.

apps/remix/app/routes/_authenticated+/t.$teamUrl+/documents.$id._index.tsx

@@ -67,6 +67,7 @@ export async function loader({ params, request }: Route.LoaderArgs) {
   const documentVisibility = document?.visibility;
   const currentTeamMemberRole = team.currentTeamRole;
   const isRecipient = document?.recipients.find((recipient) => recipient.email === user.email);
+
   let canAccessDocument = true;
 
   if (!isRecipient && document?.userId !== user.id) {