Activity notification settings (#8485)

Co-authored-by: Eric Bailey <git@esb.lol>
Co-authored-by: Samuel Newman <mozzius@protonmail.com>
Co-authored-by: hailey <me@haileyok.com>

src/routes.ts

@@ -11,6 +11,7 @@ export const router = new Router<AllNavigatableRoutes>({
   Search: '/search',
   Feeds: '/feeds',
   Notifications: '/notifications',
+  NotificationsActivityList: '/notifications/activity',
   LegacyNotificationSettings: '/notifications/settings',
   Settings: '/settings',
   Lists: '/lists',
@@ -50,6 +51,7 @@ export const router = new Router<AllNavigatableRoutes>({
   SavedFeeds: '/settings/saved-feeds',
   AccountSettings: '/settings/account',
   PrivacyAndSecuritySettings: '/settings/privacy-and-security',
+  ActivityPrivacySettings: '/settings/privacy-and-security/activity',
   ContentAndMediaSettings: '/settings/content-and-media',
   InterestsSettings: '/settings/interests',
   AboutSettings: '/settings/about',