feat: bapp store publishing yay

[GangGreenTemperTatum]

🥳 🥳 🥳 🥳 🥳 🥳

• https://portswigger.net/bappstore/a1d3ab3c46834b60b8c95ecdb481d8c7
• https://github.com/portswigger/sticky-burp
• https://x.com/BApp_Store/status/1907776363974590626

AI-Generated Summary

• Updated the README to reflect the current status of the BApp Store submission.
• Changed the BApp Store badge from "Submission In Progress" to "Published!", linking directly to the published entry.
• Modified the note regarding BApp Store availability to announce that StickyBurp is now available for installation.
• Added a new section titled "bAPP Store (easiest)" under Installation / Loading the extension with:
  • A direct link to the BApp Store entry.
  • A link to the PortSwigger GitHub repository fork.
  • An image displaying the installation process from the BApp Store.
• Enhanced the structure by providing clearer instructions on installation methods.
• Introduced a new image asset for visual guidance during installation from the BApp Store.

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This summary was generated with ❤️ by rigging