List all application that contain (or have contained) a tracker

It would be nice to be able to see a list of applications that contain or have contained a certain tracker, for when a user might want to know if they have used an app in the past that contained a certain tracker which was selling their data.

This feature could be added to the website, on the page of the tracker itself or possibly as a filter on the reports page. It could also be added to the API.

I thought this might be a relevant and interesting feature due to an ongoing case in the Netherlands [involving MoPub](https://nltimes.nl/2022/11/08/mass-claim-twitter-selling-data-11-million-dutch-users).

Some apps (like shazam) used to include this tracker but currently do not. Therefore, it might be useful for individuals to see which apps still do include it, and which apps did in the past. This would make it easier to check if an app one used in the past might have sold their data via a specific tracker.

Start by comparing the three entry points named in the issue: the tracker page, the reports-page filter, and the API. Define the scope for showing applications that currently or historically contained a tracker, then confirm that the chosen interface can distinguish those two states and expose both in its results.

Written by the indexing model from the issue text.