Change old moderation strikes to be displayed in a separate page (#17566)

* Change old moderation strikes to be displayed in a separate page

Fixes #17552

This changes the moderation strikes displayed on `/auth/edit` to be those from
the past 3 months, and make all moderation strikes targeting the current user
available in `/disputes`.

* Add short description of what the strikes page is for

* Move link to list of strikes to “Account status” instead of navigation item

* Normalize i18n file

* Fix layout and styling of strikes link

* Revert highlights_on regexp

* Reintroduce account status summary

- this way, “Account status” is never empty
- account status is not necessarily bound to strikes, or recent strikes