The `params` variable here was quite overloaded.
It exists via the controller to hold the request params, and was sometimes being
used in this helper as that object, but other times was being used as a local
variable, or to pass to another method, and this was confusing.
This change renames the args for a method away from `params` for more clarity,
and extracts the actual usage of the controller-provided `params` to a
better-named method for clarity.
* Add a ReportFilter class
* Add reports and targeted_reports relationships to Account
* Use ReportFilter from admin/reports controller
* Link to admin/reports filtered views from admin account show view
* Add indexes to reports.account_id and reports.target_account_id
* Simplify admin/reports controller filtering for index
* Rename parameter to resolved
* Fix issue where reports view could not access filter_link_to
* Add coverage for admin/reports controller
* DRY up resolution of related reports for target account
* Clean up admin/reports routes
* Add Report#statuses method
* DRY up current account action taken params
* Rubocop styles
