Stream of `query` notifies all boxes regardless of type

[RTrackerDev]

Stream notifies all subscribers of changes no matter what box you listen.

I can offer a quick solution(PR: #152):

void _setup() {
    if (!_Observable.isSubscribed(store)) {
      _Observable.subscribe(store);
    }
    final storeAddress = store.ptr.address;

    _Observable._any[storeAddress] ??= <int, Any>{};
    _Observable._any[storeAddress][entityId] ??= (u, pid, __) {
      // dummy value to trigger an event
      _Observable.controller.add(entityId);
    };
  }

I changed _Observable.controller.add(pid) -> _Observable.controller.add(entityId)

And:

Stream<List<T>> findStream({int offset = 0, int limit = 0}) {
    _setup();
    return _Observable.controller.stream.where((e)=>e == entityId)
        .map((_) => find(offset: offset, limit: limit));
  }

  /// Use this for Query Property
  Stream<Query<T>> get stream {
    _setup();
    return _Observable.controller.stream.where((e)=>e == entityId).map((_) => this);
  }

I added .where((e)=>e == entityId) to stream