Add search and links to plugin settings (#4854)

* Show links to plugin views and settings in plugin list and in success message after activating a plugin
* Fix menu highlighting in payment provider settings
* Specify settings_links and navigation_links for built-in plugins
* Add link to payment plugins from payment settings
* Add client-side search and "View only active plugins" for plugins page

src/pretix/plugins/banktransfer/apps.py

@@ -38,6 +38,13 @@ class BankTransferApp(AppConfig):
         version = version
         description = _("Accept payments from your customers using classical wire transfer methods with your own "
                         "bank account.")
+        settings_links = [
+            ((_("Payment"), _("Bank transfer")), "control:event.settings.payment.provider", {"provider": "banktransfer"}),
+        ]
+        navigation_links = [
+            ((_("Bank transfer"), _("Import bank data")), "plugins:banktransfer:import", {}),
+            ((_("Bank transfer"), _("Export refunds")), "plugins:banktransfer:refunds.list", {}),
+        ]
 
     def ready(self):
         from . import signals  # NOQA