Fix ESLint errors for successful deployment

- Fixed mixed operators in contentExtractor.js with proper parentheses
- Removed unused variables and imports across all components
- Fixed useCallback dependencies in ObjectEditor.js
- Corrected == to === comparisons in TableEditor.js
- Fixed undefined variable references
- Wrapped serializeToPhp in useCallback to resolve dependency warning
- Updated table column width styling from min-w to w for consistent layout

Build now passes successfully with only non-blocking warnings remaining.

src/pages/ObjectEditor.js

@@ -1,7 +1,6 @@
 import React, { useState, useRef, useCallback } from 'react';
-import { Edit3, Upload, FileText, Workflow, Table, Globe, Plus, AlertTriangle, BrushCleaning, Code, Braces, Download } from 'lucide-react';
+import { Upload, FileText, Workflow, Table, Globe, Plus, AlertTriangle, BrushCleaning, Code, Braces, Download, Edit3 } from 'lucide-react';
 import ToolLayout from '../components/ToolLayout';
-import CopyButton from '../components/CopyButton';
 import StructuredEditor from '../components/StructuredEditor';
 import MindmapView from '../components/MindmapView';
 import PostmanTable from '../components/PostmanTable';
@@ -102,10 +101,6 @@ const ObjectEditor = () => {
     setCreateNewCompleted(false);
   };
 
-  // Create initial empty object with one property
-  const createInitialEmptyObject = () => {
-    return { "": "" };
-  };
 
   // Confirm input method change and clear data
   const confirmInputChange = () => {
@@ -390,7 +385,7 @@ const ObjectEditor = () => {
   };
 
   // Simple PHP serialization function
-  const serializeToPhp = (data) => {
+  const serializeToPhp = useCallback((data) => {
     if (data === null) return 'N;';
     if (data === undefined) return 'N;';
     if (typeof data === 'boolean') return data ? 'b:1;' : 'b:0;';
@@ -418,7 +413,7 @@ const ObjectEditor = () => {
       return result;
     }
     return 'N;';
-  };
+  }, []);
 
   // Generate output formats
   const generateOutputs = useCallback((data) => {
@@ -452,7 +447,7 @@ const ObjectEditor = () => {
         serialized: 'Error generating PHP serialized data'
       });
     }
-  }, []);  
+  }, [serializeToPhp]);  
 
   // Handle file import
   const handleFileImport = (event) => {
@@ -469,50 +464,6 @@ const ObjectEditor = () => {
     }
   };
 
-  // Load sample data
-  const loadSample = () => {
-    const sample = {
-      "users": [
-        {
-          "id": 1,
-          "name": "John Doe",
-          "email": "john@example.com",
-          "age": 30,
-          "role": "admin",
-          "active": true
-        },
-        {
-          "id": 2,
-          "name": "Jane Smith",
-          "email": "jane@example.com",
-          "age": 28,
-          "role": "user",
-          "active": true
-        },
-        {
-          "id": 3,
-          "name": "Bob Wilson",
-          "email": "bob@example.com",
-          "age": 35,
-          "role": "moderator",
-          "active": false
-        }
-      ],
-      "settings": {
-        "theme": "dark",
-        "language": "en",
-        "timezone": "UTC",
-        "features": {
-          "notifications": true,
-          "darkMode": true,
-          "autoSave": false
-        }
-      },
-      "tags": ["developer", "javascript", "react", "nodejs"]
-    };
-    setStructuredData(sample);
-    generateOutputs(sample);
-  };
 
   // Fetch data from URL
   const handleFetchData = async () => {