[Docs] Enable Fullscreen Option for Embedded Video in Quick Start Guide

[madhavraj2004]

Enable Fullscreen Option for Embedded Video in Quick Start Guide

Motivation for the Change

This pull request adds the fullscreen functionality to embedded videos in our quick start guide. This enhancement will improve the user experience by allowing users to view tutorial videos in fullscreen mode, making it easier to follow along with detailed instructions and demonstrations.

Implementation Details

• Added allowfullscreen attribute to video iframe elements
• Ensured proper styling and responsiveness of the video container
• Maintained aspect ratio when expanding to fullscreen
• Compatible with major browsers (Chrome, Firefox, Safari, Edge)

Testing Instructions

1. Navigate to the quick start guide page
2. Locate any embedded video in the documentation
3. Verify that the fullscreen icon appears in the video player controls
4. Click the fullscreen button and confirm:
   • Video expands properly to full screen
   • Video maintains proper aspect ratio
   • Video controls remain accessible
   • Exit fullscreen works correctly (using either ESC key or the fullscreen button)
5. Test across different browsers to ensure consistent behavior

Notes

• Please review video playback performance in fullscreen mode
• Ensure accessibility standards are maintained

[adamziel]

Thank you @madhavraj2004!