Block Style names truncate too aggressively

[MadtownLems]

Description

When a Block style name is too long for the button, it is truncated and given a "..." at the end. However, it truncates too aggressively, replacing a single character with "..."

Step-by-step reproduction instructions

1. Register a block style with the name "Subtle Border"
2. Insert the block and view the Style selection panel
3. See that "Subtle Border" has been truncated to "Subtle Borde...", which is less readable and actually longer.

Screenshots, screen recording, code snippet

Environment info

WordPress 6.0.1, no Gutenberg plugin

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

[mrwweb]

Duplicate of #40331