What?

Closes #67758

It Fixes focus stealing from search input in DataViews ListView layout.

Why?

In the DataViews ListView layout, when users type in the search field, focus would automatically jump to list items as the search
results updated. This made it impossible to complete typing a search query, as the focus would move away from the search input
mid-typing.

This issue was unique to ListView because it uses a Composite component with automatic focus management that updates
activeCompositeId whenever the selected item changes. GridView and TableView don't have this problem as they use simpler focus management without automatic focus updates.

How?

The fix adds focus protection by checking if the search input field is currently focused before moving focus to list items.
Specifically:

1. In the useEffect for selection changes: Before updating activeCompositeId, check if the search field has focus
2. In the selectCompositeItem function: Before calling focus() on composite items, check if the search field has focus

This approach preserves all existing functionality:

• Keyboard navigation still works when not searching
• Focus management works normally for mouse interactions
• All accessibility features remain intact

Testing Instructions

1. Open the storybook story for DataViews
2. Switch to ListView layout
3. Click in the search field
4. Start typing a search query (e.g., "eu")
5. Verify that focus remains in the search field throughout typing

Testing Instructions for Keyboard

1. Open the storybook story for DataViews
2. Tab to the search field
3. Type a search query using only the keyboard
4. Verify focus stays in the search field during typing
5. Press Tab to move focus away from search and move it to list items
6. Use arrow keys to navigate through list items

Screenshots or screencast

Before

After