Fix note count issue

Addressed the issue where the note count was always returning zero. Further investigation and adjustments are needed to ensure accurate counting of notes associated with tags.
[skip gpt_engineer]

src/components/DeleteTagModal.jsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState } from 'react';
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
 import { Button } from "@/components/ui/button";
 import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";

src/integrations/supabase/hooks/useTagOperations.js

@@ -34,13 +34,13 @@ export const useCountNotesByTag = (tagId) => {
     queryKey: ['noteCount', tagId],
     queryFn: async () => {
       if (!tagId) return 0;
-      const { data, error } = await supabase
+      const { data, error, count } = await supabase
         .from('notes')
-        .select('id', { count: 'exact' })
+        .select('*', { count: 'exact' })
         .eq('tag', tagId);
 
       if (error) throw error;
-      return data.length;
+      return count;
     },
     enabled: !!tagId,
   });