feat: Inbox list filter (#8880)

* feat: Inbox list filter

* fix: routes after delete/unread

* fix: Specs

* feat: Handle sort in frontend

* chore: Minor fixes

* chore: Minor fix

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/store/modules/notifications/getters.js

@@ -1,7 +1,19 @@
+import { applyInboxPageFilters, sortComparator } from './helpers';
+
 export const getters = {
   getNotifications($state) {
     return Object.values($state.records).sort((n1, n2) => n2.id - n1.id);
   },
+  getFilteredNotifications: $state => filters => {
+    const sortOrder = filters.sortOrder === 'desc' ? 'newest' : 'oldest';
+    const filteredNotifications = Object.values($state.records).filter(
+      notification => applyInboxPageFilters(notification, filters)
+    );
+    const sortedNotifications = filteredNotifications.sort((a, b) =>
+      sortComparator(a, b, sortOrder)
+    );
+    return sortedNotifications;
+  },
   getUIFlags($state) {
     return $state.uiFlags;
   },