Refactor code structure and remove redundant changes

src-old/hooks/usePublicNovuSettings.ts

@@ -0,0 +1,30 @@
+import { useQuery } from '@tanstack/react-query';
+import { supabase } from '@/lib/supabaseClient';
+
+/**
+ * Hook to fetch public Novu settings accessible to all authenticated users
+ */
+export function usePublicNovuSettings() {
+  const { data: settings, isLoading, error } = useQuery({
+    queryKey: ['public-novu-settings'],
+    queryFn: async () => {
+      const { data, error } = await supabase
+        .from('admin_settings')
+        .select('setting_key, setting_value')
+        .eq('setting_key', 'novu.application_identifier')
+        .maybeSingle();
+      
+      if (error) throw error;
+      return data;
+    },
+  });
+
+  const applicationIdentifier = settings?.setting_value as string || '';
+
+  return {
+    applicationIdentifier,
+    isLoading,
+    error,
+    isEnabled: !!applicationIdentifier,
+  };
+}