Reduce the size of the banner on mobile

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: None
• Fix Version/s: 3.X EE, 3.X CE, 3.1 EE, 3.1.0 CE
• Component/s: Social Office Dashboard, Social Office Dashboard > Look & Feel, Social Office Site > Site Look & Feel
• Labels: None
• Epic/Theme:
  • social_office

Hide the user avatar and reduce the size of padding. The user avatar is not necessary since the link to the profile is available in the userbar.