"Cancel field changes" modal spans the entire screen

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.0 Beta 1, 7.1.X, Master
• Component/s: Forms
• Labels:
  • Front-end-forms
  • forms_mission_1
  • fw_test_manual
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/57408

Steps to Reproduce:

1. Add a new form
2. Add a text field
3. In the sidebar options, choose "Cancel Field Changes"
4. View modal

Expected Result:
Modal size is matches other confirm modals in forms (e.g. Leave without saving)

Actual Result:
Modal is the width of the screen. Becomes very large if the screen size is large.

Cancel field modal:

Leave form modal: