Update Bootstrap to latest version

[planetoftheweb]

Fixes #6

Update Bootstrap to the latest version (5.3.3) and remove jQuery.

• index.html

  • Update Bootstrap CSS link to use the CDN link for version 5.3.3.
  • Remove the jQuery script link.
  • Remove the local Bootstrap CSS link.
  • Add the Bootstrap JavaScript CDN link.
  • Remove the reference to <script defer src="js/lib/fontawesome-all.min.js"></script>.

• js/script.js

  • Replace jQuery's $(function () { ... }) with document.addEventListener('DOMContentLoaded', function () { ... }).

• Deleted files

  • Remove js/lib/jquery.min.js.
  • Remove css/animate.css.

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