Update IcSearchBar guidance to include an example using the search bar in a form

[GCHQ-Developer-718]

What component is this related to?

IcSearchBar

Why do we need it?

To demonstrate how to use the new preventFormSubmitOnSearch prop.

The example could be similar to the In a Form storybook story, which consists of a form containing one IcSearchBar with preventFormSubmitOnSearch set to false and a second IcSearchBar with preventFormSubmitOnSearch set to true (after ui-kit 2788 is merged).

🚨 Urgency (low, medium or high)

If applicable, tell us how urgent it is that this issue gets resolved, based on the impact it has on your team's work or project timeline.

Related open issues

ui-kit 2788