Wrong Variable Documentation for Button icon_placement

did it

Fixed another typo:
* - type: [string] Button type: primary, primary, secondary, tertiary.

Thanks. Moving to postponed for now. This will be a good example to learn how to do a Merge Request (MR).

Closing as fixed because we'll do the updates here:

📌 Part 2: Update SDDS component variables to support SDC conversion script Active

Automatically closed - issue fixed for 2 weeks with no activity.