fix: add noopener to window.open call in AnnouncementToastProvider

[LikiosSedo]

Summary

• Add noopener,noreferrer to window.open() call in AnnouncementToastProvider to prevent the opened page from accessing window.opener

Test plan

• Verify announcement toast links still open correctly in a new tab
• Verify window.opener is null in the opened page

High-level PR Summary

This PR adds security parameters noopener and noreferrer to the window.open() call in the AnnouncementToastProvider component. This prevents newly opened pages from accessing the window.opener property, which protects against potential tabnabbing attacks where malicious sites could manipulate the opener page.

⏱️ Estimated Review Time: 5-15 minutes

💡 Review Order Suggestion

Order	File Path
1	surfsense_web/components/announcements/AnnouncementToastProvider.tsx

[vercel]

@LikiosSedo is attempting to deploy a commit to the Rohan Verma's projects Team on Vercel.

A member of the Team first needs to authorize it.

[recurseml]

Review by RecurseML

🔍 Review performed on a474c46..227fb01

✨ No bugs found, your code is sparkling clean

✅ Files analyzed, no issues (1)

• surfsense_web/components/announcements/AnnouncementToastProvider.tsx