✨ Enhanced mindmap visualization with professional UI

🎯 Major Features Added:
- Snap to grid functionality (20x20 grid, default enabled)
- Tidy Up button for instant node reorganization
- Copy node values with one-click clipboard integration
- HTML rendering toggle (render/raw modes for HTML content)
- Accordion-style collapsible panels (Controls & Legend)
- Automatic fitView on fullscreen toggle with smooth animations

🎨 UI/UX Improvements:
- Professional accordion layout with exclusive panel opening
- Consistent button alignment and styling across all controls
- Legend moved to top-right with icon+color indicators
- Vertical button stack: Controls → Legend → Tidy Up → Fullscreen
- Smooth transitions and hover effects throughout
- Clean, uncluttered interface with folded panels by default

🔧 Technical Enhancements:
- Fixed ResizeObserver errors with proper error handling
- Optimized React rendering with memo and useCallback
- Debounced DOM updates to prevent infinite loops
- React Flow instance management for programmatic control
- Removed redundant Raw Input button for cleaner interface

🚀 Performance & Stability:
- Error boundary implementation for ResizeObserver issues
- Proper cleanup of event listeners and timeouts
- Memoized components to prevent unnecessary re-renders
- Smooth 300ms animations for all state transitions

src/pages/Home.js

@@ -1,5 +1,5 @@
 import React, { useState } from 'react';
-import { Search, Code, Link2, FileText, Hash, RefreshCw, GitCompare, Database, Type } from 'lucide-react';
+import { Search, Code, Link2, FileText, Hash, RefreshCw, GitCompare, Database, Type, Edit3 } from 'lucide-react';
 import ToolCard from '../components/ToolCard';
 
 const Home = () => {
@@ -7,18 +7,11 @@ const Home = () => {
 
   const tools = [
     {
-      icon: Code,
-      title: 'JSON Encoder/Decoder',
-      description: 'Format, validate, and minify JSON data with syntax highlighting',
-      path: '/json',
-      tags: ['JSON', 'Format', 'Validate']
-    },
-    {
-      icon: Database,
-      title: 'Serialize Encoder/Decoder',
-      description: 'Encode and decode serialized data (PHP serialize format)',
-      path: '/serialize',
-      tags: ['PHP', 'Serialize', 'Unserialize']
+      icon: Edit3,
+      title: 'Object Editor',
+      description: 'Visual editor for JSON and PHP serialized objects with format conversion',
+      path: '/object-editor',
+      tags: ['Visual', 'JSON', 'PHP', 'Objects', 'Editor']
     },
     {
       icon: Link2,