Remove user initials from the VerticalCard

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: None
• Component/s: ~ [Archived] Collaboration, ~[Archived] UI Taglibs
• Labels: None

As the userPortrait taglib has been changed removing the user initials, the vertical card's label must be aligned with it.

So, when the user has no profile picture, a default image is rendered instead of user initials with a background color.