Replace the user icon in the autocomplete for Sharing dialog when the user has no profile picture

• Type: Story
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Collaboration
• Labels:
  • 7.2-ui-change
  • Apr_'19
  • pt-app-security-review
• Epic Link: User portrait must be always placed in a circular sticker
• Sprint: Col | Sprint11 | Mar19 - Mar28, Col | Sprint 12 | Apr1 - Apr5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/70364

Use the new icon with background color for users that do not have profile picture. This icon cab be found on the autocomplete list when typing user emails in the input. Definition can be found at https://issues.liferay.com/browse/LPS-90806

Change has to be made in Sharing.soy (`{call ClaySticker.render}`)