Filtering on saved search cells broken

[stacey-gammon]

It's an obvious fix.

this:

  const actions = await api.getTriggerCompatibleActions!(triggerId, {
    embeddable: actionContext.embeddable,
  });

should be

  const actions = await api.getTriggerCompatibleActions!(triggerId, actionContext);

Most importantly though, this shows we have no test coverage for this case and should add it.

cc @streamich

[elasticmachine]

Pinging @elastic/kibana-app-arch