Add last login and exports in collaborators

🔍 Problem Statement

As an Admin, I experience a lack of capabilities in the collaborators view

Specifically:

1. No last login visibility — admins cannot identify inactive or dormant collaborator accounts, making periodic security reviews manual and error-prone.

2. No collaborator export — the collaborator list cannot be exported, sorted, or filtered, making bulk compliance reviews impractical.

💡 User Stories

As an Account Owner or Admin, I want to see the last login timestamp for each collaborator, so that I can identify dormant or inactive accounts during periodic security and compliance reviews.

As an Account Owner or Admin, I want to export the full collaborator list (including role, status, last login, and email), so that I can perform bulk access reviews, identify accounts to deactivate, and meet auditor requirements without manually paginating through the UI.

🎯 Definition of Done (DoD)

Current release:

1. Upgrade the collaborators view

2. Add last login at column to collaborators table + sortable.

3. Add export button for collaborators then a CSV/XLSX file is generated containing: name, email, role, status (active/inactive), last login, and account creation date.