feat(website): enhance TechStackSection with new icons and improved layout

[SteveLin100132]

This pull request enhances the website's TechStackSection, introducing new technology icons and an improved layout for a more visually appealing and informative presentation of the project's tech stack.

Key Updates:

• TechStackSection Visual Upgrade:

  • Added multiple technology icons using @icons-pack/react-simple-icons, making the stack easier to identify and more attractive.
  • Refactored the layout for better clarity and alignment, ensuring a modern, organized look.

• Styling Improvements:

  • Updated section padding and spacing for improved consistency.
  • Fine-tuned the navigation bar's glass effect by adding a glass-effect-no-shadow class, resulting in a cleaner appearance during scroll events.
  • Changed the footer background color from bg-primary to bg-black for improved contrast.

• Dependency Updates:

  • Introduced @icons-pack/react-simple-icons to support the new tech stack icons.
  • Updated package.json and package-lock.json accordingly.

Impact:
These changes make the tech stack section more engaging and easier to read, while also polishing the overall website layout and style.