Pagination improvements (#1445)

* Replace will_paginate with kaminari

* Use #page instead of #paginate in controllers

* Replace will_paginate.page_gap with pagination.truncate in i18n

* Customize kaminari views to match prior styles

* Set kaminari options to match prior behavior

* Replace will_paginate with paginate in views

app/helpers/accounts_helper.rb

@@ -1,12 +0,0 @@
-# frozen_string_literal: true
-
-module AccountsHelper
-  def pagination_options
-    {
-      previous_label: safe_join([fa_icon('chevron-left'), t('pagination.prev')], ' '),
-      next_label: safe_join([t('pagination.next'), fa_icon('chevron-right')], ' '),
-      inner_window: 1,
-      outer_window: 0,
-    }
-  end
-end