[Intergalactic 2] Quote block missing visual queues in the editor

[rickmgithub]

Quick summary

The Quote block is not being created and looks like a normal paragraph block.

Steps to reproduce

1. Using Explorer plan
2. Create a post
3. Add a Quote block
4. Notice how it's not rendering as a quote block in the editor

What you expected to happen

The quote block to be immediately obvious

What actually happened

It looks like a paragraph block

Impact

Some (< 50%)

Available workarounds?

Yes, easy to implement

Platform (Simple and/or Atomic)

Simple

Logs or notes

Screen capture -

https://github.com/Automattic/wp-calypso/assets/13706336/715ccd6d-1a42-4d93-8fd4-8a089b8a4b62

[mrfoxtalbot]

I can reproduce what you describe. The block is there but it nos distinguished visibly from other blocks

The block does render correctly when published: