## Bug description

<img width="696" alt="Screen Shot 2021-09-16 at 2 37 41 PM" src="https://user-images.githubusercontent.com/13460330/133689529-c4fffc7f-53f8-494e-b7a8-7fb656fd50e6.png">

## Expected behavior

Bars and labels always show on top of axes and gridlines.

## How to reproduce

1. https://app.posthog.com/insights?insight=FUNNELS&properties=%5B%5D&filter_test_accounts=false&events=%5B%7B%22id%22%3A%22%24pageview%22%2C%22name%22%3A%22%24pageview%22%2C%22type%22%3A%22events%22%2C%22order%22%3A0%7D%2C%7B%22id%22%3A%22%24pageview%22%2C%22name%22%3A%22%24pageview%22%2C%22type%22%3A%22events%22%2C%22order%22%3A1%7D%2C%7B%22id%22%3A%22%24pageview%22%2C%22name%22%3A%22%24pageview%22%2C%22type%22%3A%22events%22%2C%22order%22%3A2%7D%5D&actions=%5B%5D&exclusions=%5B%5D&interval=day&funnel_from_step=0&funnel_to_step=1&new_entity=%5B%5D&funnel_viz_type=time_to_convert&display=FunnelViz

## Environment

- [X] PostHog Cloud
- [X] self-hosted PostHog (ClickHouse-based), version/commit: _please provide_
- [X] self-hosted PostHog (Postgres-based, legacy), version/commit: _please provide_

## Additional context



#### *Thank you* for your bug report – we love squashing them!

ee/clickhouse/views/test/test_clickhouse_insights.py
_create_person(distinct_ids=["1"], team=self.team)
        _create_event(team=self.team, event="step one", distinct_id="1")
        _create_event(team=self.team, event="step x", distinct_id="1")
        _create_event(team=self.team, event="step two", distinct_id="1")
        _create_person(distinct_ids=["2"], team=self.team)
        _create_event(team=self.team, event="step one", distinct_id="2")
        _create_event(team=self.team, event="step two", distinct_id="2")
        for exclusion_id, exclusion_from_step, exclusion_to_step, error in [
            ("step one", 0, 1, True),
            ("step two", 0, 1, True),
            ("step two", 0, 2, True),
            ("step one", 0, 2, True),
            ("step three", 0, 2, True),