Help ("?") button on Smart Strings Variables Group Asset in the Inspector leads to a "page does not exist" documentation link

Steps to reproduce:

1. Create a new project
2. Go to the Project window
3. Right-click > Create > Smart Strings > Variables Group
4. Select the newly created Variables Group asset
5. In the Inspector window, click the "?" (help) button

Actual results: The help button opens a documentation page that does not exist ("page does not exist" / broken link)

Expected results: The help button should open a valid, relevant documentation page for the Variables Group asset

Reproducible with versions: 6000.7.0a4

Not reproducible with versions: 6000.0.80f1, 6000.3.22f1, 6000.5.7f1, 6000.6.0b8 - no Smart Strings feature

Tested on (OS): MacBook Pro - Tahoe 26.5.2