Add optional onBlur handler to SearchBar component

Author: kangjoa

packages/ui-extensions/docs/surfaces/point-of-sale/staticPages/pages/versions.doc.ts

@@ -63,6 +63,7 @@ Refer to the [migration guide](/docs/api/pos-ui-extensions/migrating) for more i
 - Added optional \`currency\` property to \`Discount\` interface.
 - Added \`executedAt\` property to \`BaseTransactionComplete\` interface.
 - Added optional \`exchangeId\` and \`returnId\` property to \`ReturnTransactionData\` interface.
+- Added optional \`onBlur\` handler to \`SearchBar\` component.
 
   `,
     },