Make screenshotUris non-optional.

[jladieu]

If omitted, they should be defaulted to an empty list.

[inlined]

Starting on line 332, edit the following code:

  const func = (raw: CloudEvent<unknown>) => {
    return handler(raw as AppDistributionEvent<InAppFeedbackPayload>);
  };

to be:

const func = (raw: CloudEvent<unknown>) => {
  const event = raw as AppDistributionEvent<InAppFeedbackPayload>;
  // Consolidate the case of empty array and null array
  event.data.payload.screenshotUris = event.data.payload.screenshotUris || [];
  return handler(event);
};