Improve experience of configuring custom field input type

• Type: Story
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Portal Configuration > Custom Fields
• Labels:
  • 7.2-ui-change
  • UandSM-apr19
• Epic/Theme:
  • Administration-User-Experience
• Epic Link: Improve custom field usability
• Sprint: U&SM | S02 Sprint 12, U&SM | Sprint 13, U&SM | Sprint 14, U&SM | Sprint 15

Custom text fields should still have width in advanced properties, and text areas will have both width and height in advanced properties.