[HelpHub] Overhaul Moving Blocks

[estelaris]

Article: https://wordpress.org/documentation/article/moving-blocks/

Review full article, follow steps from the [HelpHub] Overhauling articles in the Customization subcategory - READ FIRST #2378

Open issues

• [HelpHub] Feedback on Moving blocks #993
• [HelpHub] Update Moving blocks documentation to reflect current editor UI and List View #2144

[github-actions]

Heads up - the "block editor" label was applied to this issue.

[github-actions]

Heads up @WordPress/docs-issues-coordinators, we have a new issue open. Time to use 'em labels.