## 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/sql.py
GROUP BY day_start, breakdown_value
"""
VOLUME_PER_ACTOR_BREAKDOWN_AGGREGATE_SQL = """
SELECT {aggregate_operation} AS total, breakdown_value
FROM (
    SELECT
        COUNT(*) AS intermediate_count,
        {aggregator}, {breakdown_value} AS breakdown_value
    FROM events AS e
    {person_join}
    {groups_join}
    {sessions_join_condition}
    {breakdown_filter}
    GROUP BY {aggregator}, breakdown_value
)
GROUP BY breakdown_value
ORDER BY breakdown_value
"""
SESSION_DURATION_BREAKDOWN_INNER_SQL = """
SELECT
    {aggregate_operation} as total, day_start, breakdown_value
FROM (
    SELECT any(session_duration) as session_duration, day_start, breakdown_value FROM (
        SELECT {event_sessions_table_alias}.$session_id, session_duration, {interval_annotation}(toTimeZone(toDateTime(timestamp, 'UTC'), %(timezone)s) {start_of_week_fix}) as day_start,
            {breakdown_value} as breakdown_value
        FROM events AS e
        {person_join}
        {groups_join}
        {sessions_join}
        {breakdown_filter}