Add code examples of setFocus method to components

## Summary

A number of components have a `setFocus()` method. However, there are no examples of how to use the method.

It would be good to add examples (with ability to launch in stackblitz)

- ic-accordion
- ic-accordion-group
- ic-breadcrumb
- ic-button
- ic-card
- ic-checkbox
- ic-chip
- ic-link
- ic-navigation-button
- ic-navigation-group
- ic-navigation-item
- ic-radio-option
- ic-search-bar
- ic-select
- ic-switch
- ic-tab
- ic-text-field

Need to decide if this should be done for every component that supports the method

## 💰 Use value

Helps developer understand how to interact with the components

Use the listed components as the initial scope and verify which ones support setFocus(). Review the project's component-example and StackBlitz entry points, then add runnable examples for the agreed set. Done means each agreed example shows how to call setFocus() and can be launched in StackBlitz.

Written by the indexing model from the issue text.