Code components and overrides use incorrect icon in review changes panel

Gave this a quick try. Not sure how to create overrides though.

@penyaskito You need to enable xb_dev_js_blocks module for overrides to show up in the UI.

Thanks! I validated the fix works for overrides too.

Looks great!

Two minor things:

1. I think we can get rid of all instances of IconType.COMPONENT1, as well as the styling for that type. Unless, see my question below.
2. Can you please also update the stories for the PublishReview component? We don't have a lot of stories in our Storybook, this component does have them. 🙂

Question to @lauriii, is it okay to use the same code icon for the exposed code components? They get a different icon the sidebar in that case, that's why I'm asking.

Also, do we want to update the icon for Global CSS as well while we're here? The API endpoint returns icon: 'cms' for it, so we may want to adjust this on the backend, but it's also easy to look at the entity type in the frontend component.

NR.
#7: Got rid of every Component1Icon. There are a couple of cases that could be discussed:
1. New component menu: Does nothing, Laurii confirmed we can delete that.
2. Not sure about my PageInfo checks, definitely appreciate feedback there @balintbrews

Test failure is unrelated.

Fixed feedback.