[Elements] igc-action-strip stays hidden / not visible

[IMinchev64]

Description

After commit c0c007ce86 (#16326), igc-action-strip in Angular Elements remains invisible even though show() runs, hidden is false, and the element is appended to the row. Bisect points to #16326; in that commit the Elements analyzer output removed the ActionStrip contentQueries for actionButtons. This likely prevents the strip from wiring its actions correctly and leaves it hidden in WC/Elements.

• igniteui-angular version: 21.1.x, 21.0.x
• browser: any

Steps to reproduce

1. Run the elements grid via executing npm run start:elements
2. Hover over any row

Result

Action strip is not shown

Expected result

Action strip should appear

Attachments

Attach a sample if available, and screenshots, if applicable.