Milestone M38 - real time updates, notifications and bug fixes

Let's go through what we got done in Milestone M38 (Jun02 - Jun15).

New Features & Improvements 🚀

✅ Real-Time Updates

The Board view and Task details pane now support real-time updates. Changes made by others will appear instantly.

✅ Notifications

A new sidebar item has been added to display Activities and Mentions, along with a badge to indicate unread items.

Bug Fixes ⚒️

✅ Archived Project Links

Fixed an issue where some emails contained incorrect links to archived projects.

✅ Tag Color Discrepancy

Resolved inconsistencies in tag color display.

✅ Unarchiving Projects

Fixed a bug that prevented certain projects from being unarchived.

✅ Delete Section Confirmation

Updated the section deletion confirmation to include the number of tasks it contains, helping prevent accidental deletions.

✅ Sanitized Incoming Email Replies

HTML content in email replies is now properly sanitized to prevent rendering issues.