[WIP] Fix share buttons to open in new windows and update LinkedIn link

[Copilot]

Fix Share Buttons Functionality

• Research correct LinkedIn sharing URL and parameters
• Update LinkedIn share URL to include title and fix preview issue
• Add click event handlers to open share links in popup windows instead of new tabs
• Ensure Twitter/X shares include the title properly in the tweet text
• Update Facebook share URL if needed to include title
• Test all share buttons to verify popup behavior and content sharing
• Fix window name to be unique per platform for simultaneous sharing
• Run code review and address feedback
• Run security check

Original prompt

On index.js, Can you make the share buttons open in a little windows rather than changing the current page. Also LinkedIn doesn't seem to work: "Cannot display preview. You can post as is, or try another link."

Also for X (and presumably other sites), I just see the url, can we add the title too when sharing.

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.