BB-2240: Custom page editor

[giovannicimolin]

This PR adds the Custom Page editor functionality in the new Ocim UX.

Testing Instructions:

1. Check out this branch.
2. Rebuild API client.
3. Run Ocim and new frontend.
4. Go to the custom pages and test around.

Some edge cases for testing:

• Change the page content, them click on a link for another page.
• Go to some page that has some text (http://localhost:3000/console/custom-pages/honor), do a browser refresh and then try to save the content without changing.
• Do the same as above, but change the content.
• Try erasing values.

Reviewer:

• @Agrendalath

[Agrendalath]

Works great! I just saw some extra changes after the rebase.

Also answering your comment here, as GitHub for some reason doesn't display the text field under that.

We'll need to eject the project to include TinyMCE into the bundle, otherwise we'll get this pesky warning:

Does it mean that we would need to update everything for this package manually instead of using npm for this?
If so, wouldn't it be better to simply create an account and provide apiKey there? I see that it's free.

[Agrendalath]

👍

• I tested this: tested that the editor works correctly, preview links are displayed and the API key is passed to the editor
• I read through the code
• I checked for accessibility issues
• Includes documentation