Describe the bug
When editing an existing Post and changes are introduced a "Revert" button appears but it doesn't work

To Reproduce
Steps to reproduce the behavior:

1. Go to the editor
2. Save a draft post
3. Edit the newly created draft
4. Tap on the "Revert" button

Expected behavior
A confirmation prompt should appear and if the user confirms the alert modal then the recent changes should be reverted.

This works in a Desktop browser.

Screenshots
https://share.getcloudapp.com/wbu9oLEk

Environment (please complete the following information):

• Device: iPhone 11
• OS: iOS 14.3
• Release version: v0.3.0

Additional context
Found based on report from forem/forem#12401