Twenty Twenty-One: letter spacing not applied to Quote block in Editor, on front-end, widgets area

[oksankaa]

While investigating #58033 I noticed in the TT1 theme that letter spacing does not apply to any representation of the Quote block.

Steps to reproduce:

1. install WP 6.1 or 6.2 (hasn't tested earlier versions)
2. install official TT1 theme from WP.org (v1.8)
3. go to Post > Add new and/or Appearance > Widgets
4. add a Quote block
5. click on the Quote in the List view of all the blocks in a post, and in block settings click Typography -> settings (3 dots) and add Letter Spacing with the value of 10px, for example
6. observe that after applying this setting to the block neither preview in the editor, nor widget area preview, nor post on front-end, nor widgets on front-end have this styling applied.

Tested on both WP 6.1 and WP 6.2 with the latest TT1 theme from wordpress.org.

[kelvinballoo]

I think this could be linked to https://core.trac.wordpress.org/ticket/58024

[ironprogrammer]

Thank you for the report, @oksankaa!

Just noting here that there have been several letter spacing tickets related to some bundled themes, and that one conversation suggested having the editor resolve this directly, rather than updates to each individual theme. Hopefully this rings a bell for anyone else reading this, otherwise I'll try to track down that comment.