ToolsPanel UI prevents styling of multiple paragraph blocks at once #37188

Description

When Typography settings were migrated to the ToolsPanel UI (#33744), the ability to edit the typography styling of multiple paragraph blocks at once was lost.

Previously, users could highlight multiple paragraph blocks and style them all together. Under the new UI, the typography controls are no longer visible for multi-block selections, and only colors can be edited.

Step-by-step reproduction instructions

1. Start at /wp-admin/post-new.php
2. Create two or more paragraph blocks with text content
3. Click into one of the paragraphs and note the available typography options in the sidebar
4. Click and drag to highlight from the beginning of the first block to the end of the last block
5. Note the typography options are gone from the sidebar, but color options remain available

Originally reported on WordPress.com

Screenshots, screen recording, code snippet

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Environment info

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Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes