Add additional parameter(s) to the uninstalled page

Background / User story

As we're trying to understand a bit better why users uninstall ABP, we add additional parameters to the /uninstalled page - these tell us basic information so we can try and debug what the issue was, so we can fix it.

As such, we want to add additional parameters to understand whether users are impacted by the experimental web allowlisting API feature.

What to change

Add a new parameter to the /uninstalled page that can tell us whether the user has used the experimental allowlisting feature. Ideally, the parameter should also give us information regarding how many rules have been added.

• Spec: N/A
• Development:
  • Add a wafc (read: web allowlisting filter count – it's "web" because the allowlisting filters didn't get added through the extension, but through a web page) query parameter to the uninstall URL, that contains the number of currently active allowlisting filters that have been added using the experimental allowlisting functionality.
  • The eyeo Data team should be informed about this change so they can be prepared for adjusting dashboards & co, as needed;

Hints for testers

The uninstall URL should contain a new parameter called wafc that should contain the number of currently active allowlisting filters that have been added using the experimental allowlisting functionality; allowlisting filters that are manually added via the extension UI should not count towards this number.

Hints for translators

Nothing to translate.