User without "Add Form Instance Record" permission should be warned when filling a form

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: forms.liferay.com, Master
• Fix Version/s: 7.0.0 DXP FP94, 7.0.10.15 DXP SP15, 7.0.X, 7.1.X, Master
• Component/s: Forms
• Labels:
  • forms.liferay.com
  • forms_mission_8
  • fw_test_needed
  • liferay-dxp-70-sp15
  • liferay-fixpack-de-94-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/59842

Steps to reproduce:

1. Go to Content > Forms
2. Add a Form
3. Add a Text field
4. Save and Publish form
5. Go back to Content > Forms
6. Change permissions of the form you just created
7. Uncheck "Add form instance record" permission for every role
8. Copy Form URL and open it in an anonymous tab, so you will be a guest user
9. Try to submit the form

Expected result:
Submit button should be hidden or a toast message should warn the use he/she cannot add a form entry, avoiding him or her to lose their time filling the form. The correct behavior should be defined by the product designer.

Actual result:
The user is only warned that he/she does not have permission to submit the entry after pressing the submit button, and the error message is not clear.