Prevent crashing on remote cards code

[brunobar79]

Fixes APP-1640

What changed (plus any additional context for devs)

There was a cast forcing an object to be treated as TrimmedCard while this could be undefined here
Once I removed it, all the types error showed up and dealt with each of those by using optionals.

The first commit from christian also added some safety checks at the store level.

Screen recordings / screenshots

The app works the same way, it won't crash if we unpublish a card that was already stored in zustand.

What to test

Remote cards feature.

[linear]

APP-1640 Blank screen when remote cards data doesn't exist as expected

[greg-schrammel]

thoughts on something like this?

// don't know how to call it (not exported)
// but like a dumber version of the remote card that expects card to be defined already
const _RemoteCard = ({
  card,
  gutterSize,
  carouselRef,
}: {
  card: TrimmedCard;
  gutterSize: number;
  carouselRef: React.RefObject<FlashList<string>> | null;
}) => { ... }

// this is the exported component
export const RemoteCard: React.FC<RemoteCardProps> = ({ id, gutterSize, carouselRef }) => {
  const card = remoteCardsStore(state => state.getCard(id));
  if (!card || card.dismissed) return null;
  return <_RemoteCard card={card} gutterSize={gutterSize} carouselRef={carouselRef} />;
};

[brunobar79]

That would work too but I already did the work so I'll just merge it as it is