Update configuration settings and improve notifications

This commit updates the configuration settings and improves the notification functionality by filtering out duplicate notifications. It also includes changes to feature flag data types and removed dependencies in `package.json`, alongside updates to `pnpm-lock.yaml`.

packages/features/notifications/src/components/notifications-popover.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useCallback, useState } from 'react';
+import { useCallback, useEffect, useState } from 'react';
 
 import { Bell, CircleAlert, Info, TriangleAlert, XIcon } from 'lucide-react';
 import { useTranslation } from 'react-i18next';
@@ -33,7 +33,15 @@ export function NotificationsPopover(params: {
 
   const onNotifications = useCallback(
     (notifications: PartialNotification[]) => {
-      setNotifications((existing) => [...notifications, ...existing]);
+      setNotifications((existing) => {
+        const unique = new Set(existing.map((notification) => notification.id));
+
+        const notificationsFiltered = notifications.filter(
+          (notification) => !unique.has(notification.id),
+        );
+
+        return [...notificationsFiltered, ...existing];
+      });
     },
     [],
   );
@@ -108,6 +116,12 @@ export function NotificationsPopover(params: {
     return text.slice(0, 1).toUpperCase() + text.slice(1);
   };
 
+  useEffect(() => {
+    return () => {
+      setNotifications([]);
+    };
+  }, []);
+
   return (
     <Popover modal open={open} onOpenChange={setOpen}>
       <PopoverTrigger asChild>