Describe the bug

In cases when many loose assets (or a few assets with really long names) are deleted at once, the confirmation dialog can overflow beyond the viewport. This behavior obscures the dialog choices and leaves the user with no evident option to proceed.

To Reproduce

1. Create a new project in the ct.js app (v5.1.0)
2. Visit the Assets page
3. Click the "New Asset" button
4. Select "Built-in asset gallery"
5. Find and select "Kenney's Platformer" in the asset gallery
6. Click the "Import all" button
7. Return to the Assets page
8. Shift-click the first item in the Assets list
9. Scroll down and shift-click the last item in the Assets list
10. Right-click any highlighted asset and select "Delete"

Expected behavior

The list is displayed within a scrolling container with limited height and could potentially be truncated beyond N items.

System information report

Win11 x64

Screenshots (recommended)