Disallow whitespace as a platform name input (https://github.com/woocommerce/woocommerce-admin/pull/8090)

* Disallow whitespace as the platform name input

* Add changelogs

plugins/woocommerce-admin/changelogs/fix-7907-disallow-white-space-platform-name-input

@@ -0,0 +1,4 @@
+Significance: patch
+Type: Fix
+
+Disallow whitespace as the platform name input. #8090

plugins/woocommerce-admin/client/profile-wizard/steps/business-details/flows/selective-bundle/index.js

@@ -226,9 +226,8 @@ class BusinessDetails extends Component {
 				'woocommerce-admin'
 			);
 		}
-
 		if (
-			! values.other_platform_name &&
+			! values.other_platform_name.trim().length &&
 			values.other_platform === 'other' &&
 			[ 'other', 'brick-mortar-other' ].includes( values.selling_venues )
 		) {