Fix focus on link button in toolbar

Refs: #7487

Author: anicyne

packages/components/src/components/toolbar/shadow.tsx

@@ -38,7 +38,7 @@ export class KolToolbar implements ToolbarAPI {
 		};
 
 		return '_href' in element ? (
-			<KolLinkWcTag {...element} {...props} ref={catchRef}></KolLinkWcTag>
+			<KolLinkWcTag {...element} {...props} ref={catchRef} _role="button"></KolLinkWcTag>
 		) : (
 			<KolButtonWcTag {...element} {...props} ref={catchRef}></KolButtonWcTag>
 		);

packages/components/src/components/toolbar/style.scss

@@ -1,6 +1,9 @@
 @use '../@shared/mixins' as *;
 @use '../style' as *;
 @use '../tooltip/style.scss' as *;
+@use '../@shared/kol-button-mixin' as *;
+
+@include kol-button-styles('kol-link');
 
 @layer kol-component {
 	.toolbar {