## 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
import json
import random
import secrets
from pathlib import Path
from typing import List
from dateutil.relativedelta import relativedelta
from django.http import HttpResponseNotFound, JsonResponse
from django.utils.timezone import now
from posthog.constants import TREND_FILTER_TYPE_ACTIONS
from posthog.ee import is_ee_enabled
from posthog.models import (
    Action,
    ActionStep,
    Dashboard,
    DashboardItem,
    Element,
    Event,
    Funnel,
    Person,
    PersonDistinctId,
    Team,
)
from posthog.models.utils import UUIDT
from posthog.utils import render_template
ORGANIZATION_NAME = "HogFlix"
TEAM_NAME = "HogFlix Demo App"
def _create_anonymous_users(team: Team, base_url: str) -> None: