## Bug description

Monthly Active Users metric seems wrong when choosing "# Number" as chart type.

Number: 
![image](https://user-images.githubusercontent.com/513669/201980874-be7d9c0d-5c9c-4c1e-955c-ea4143c84061.png)

Line chart: 
![image](https://user-images.githubusercontent.com/513669/201980986-b17af929-84e5-4f6a-b7f8-23b7ac8bedbc.png)

**490 != 70**

## How to reproduce

1. Create a new insight using any event and the "Monthly active users" metric
2. Date range = This month + Grouped by = Day
3. Choose chart type as Number => remember value
4. Change chart type as Linear => check last data point

=> the 2 values do not match
=> in other words there's a diff between a total aggregation and an aggregation per bucket of time ?

## Environment

- [x] PostHog Cloud
posthog/queries/trends/trends_event_query.py
entity_params, entity_format_params = get_entity_filtering_params(
            entity=self._entity,
            team_id=self._team_id,
            table_name=self.EVENT_TABLE_ALIAS,
            person_properties_mode=PersonPropertiesMode.DIRECT_ON_EVENTS
            if self._using_person_on_events
            else PersonPropertiesMode.USING_PERSON_PROPERTIES_COLUMN,
        )
        return entity_format_params["entity_query"], entity_params
    @cached_property
    def _person_query(self):
        return PersonQuery(
            self._filter,
            self._team_id,
            self._column_optimizer,
            extra_fields=self._extra_person_fields,
            entity=self._entity,
        )