## Bug description

*Please describe.*  
When a user has a lot of distinct_ids, it could get ugly. 
*If this affects the front-end, screenshots would be of great help.*  
Viewing window at 33% and these are my distinct_ids
<img width="639" alt="Screen Shot 2020-10-29 at 10 06 20 AM" src="https://user-images.githubusercontent.com/13127476/97547717-86b0d980-19a4-11eb-826d-971c9e3faef1.png">

## Expected behavior
Should only show the first 3 distinct ids. If there are more than three, show a link that says "x distinct ids hidden. Click to show." When clicked, it should show all distinct ids.


## How to reproduce

1. Go look at profile for my email
2. 
3. 

## Environment

- PostHog cloud or self-managed?
- PostHog version/commit

## Additional context



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

posthog/demo.py
days_ago -= 1
        distinct_id = str(UUIDT())
        distinct_ids.append(PersonDistinctId(team=team, person=person, distinct_id=distinct_id))
        date = now() - relativedelta(days=days_ago)
        browser = random.choice(["Chrome", "Safari", "Firefox"])
        events.append(
            Event(
                team=team,
                event="$pageview",
                distinct_id=distinct_id,
                properties={"$current_url": base_url, "$browser": browser, "$lib": "web",},
                timestamp=date,
            )
        )
        if index % 3 == 0:
            person.properties.update(demo_data[demo_data_index])
            person.is_identified = True
            person.save()
            demo_data_index += 1
            Event.objects.create(
                team=team,
                distinct_id=distinct_id,
                event="$autocapture",
                properties={"$current_url": base_url, "$browser": browser, "$lib": "web", "$event_type": "click",},
                timestamp=date + relativedelta(seconds=14),
                elements=[
                    Element(
                        tag_name="a",
                        href="/demo/1",
                        attr_class=["btn", "btn-success"],