IBX-10836: Fix focus in dropdown

[GrabowskiM]

🎫 Issue	IBX-10836

Description:

1. Added focus/hover for multidropdown
2. Fixed stories after prev change to generating items
3. Fixed bug that you could focus with keyboard to selected field (which is not interactable)

For QA:

Documentation:

[Copilot]

Pull Request Overview

This PR enhances keyboard navigation and focus management in dropdown components. The changes address focus handling issues where users could navigate to non-interactable selected items, and adds hover/focus styling for multi-select dropdowns.

Key Changes:

• Implemented customizable focus navigation logic with getNextFocusableItem callback
• Added Tab key support for dropdown navigation
• Simplified InputTextInput ref handling by exposing native HTMLInputElement

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
ItemsContainer.types.ts	Defines types for custom focus navigation including direction enum and callback type
ItemsContainer.tsx	Implements moveActiveFocus function and refactors keyboard navigation to use new focus system
BaseDropdown.types.ts	Adds optional getNextFocusableItem prop to BaseDropdown interface
BaseDropdown.tsx	Passes through getNextFocusableItem to ItemsContainer with default no-op implementation
InputTextInput.types.ts	Changes ref type from custom interface to native HTMLInputElement
InputTextInput.tsx	Removes custom ref wrapper and exposes native input element directly
focus.ts	New utility implementing generic focus navigation logic for dropdown items
DropdownSingleInput.tsx	Implements custom focus logic excluding selected items, adds check icon to selected item
DropdownSingleInput.stories.tsx	Updates story values to match new ID format
DropdownMultiInput.tsx	Implements focus logic targeting checkbox elements, reorders imports
DropdownMultiInput.stories.tsx	Updates story values and adds new story for multiple selections
_dropdown.scss	Adds hover/focus styles for multi-dropdown and layout improvements for single dropdown items

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[albozek]

Suggested change

[albozek]

Suggested change

	event.preventDefault();
	event.preventDefault();