Feature: Make Chapter Sections Interactive to Show Short Descriptions and Synta

### Overview

Currently, all chapter sections (e.g., Databases, MySQL, Tables, SELECT, etc.) are static and non-interactive. Users have to open each page or resource separately to understand what each section covers.

### Description

Convert each chapter card into a clickable or expandable button that displays:
A one-line explanation of the topic
A basic SQL syntax or example

Example:
SELECT → “Used to retrieve data from a table.”
SELECT column_name FROM table_name;

This enhancement will make the page more interactive and educational, giving users a quick overview of key SQL concepts directly from the main chapters list.