Porygon Entry Display Page Template doesn't have thumbnail and fragment entry isn't added to it

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Themes > Porygon
• Labels: None
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Sprint: S03E03 - Mucugê
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/74798

Steps to Reproduce:

1. Create Porygon site
2. Go to Site Builder > Pages > Display Page Templates
3. Edit template

Expected Result:
A thumbnail representing its content and in template the Proygon fragment is added to it.

Actual Result:
The template name isn't correct, should be "Porygon Entry". No thumbnail for the template, and the Proygon fragment isn't added to it.