Update styles in Journal template editor

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.4.13 DXP GA1, Master
• Component/s: Out of the box Fragments > Collection Display Fragment
• Labels: None
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/5380

After design review: https://www.figma.com/file/Yiqm15ZhNP3HnMP4aXat5M/?node-id=2%3A471