Add photo attachment URLs to Google Sheets integration

We’re using the Google Sheets integration and everything works fine for ticket creation and status updates.

What we really need now is the ability to include photo attachments in the spreadsheet.

✅ Each ticket creates a new row — perfect
✅ Status updates are synced — great
❌ But there's no column showing URLs of the attached photos

🛠 Request:
Please add support to automatically populate a column with the photo URLs, separated by commas if multiple photos are attached.

This would help us complete our workflow and enable new departments to adopt Periskope smoothly.