refactor: update Card to use HasAriaRole interface (#9590)

## Description

Part of #9489

## Type of change

- Refactor

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: web-padawan

vaadin-card-flow-parent/vaadin-card-flow/src/main/java/com/vaadin/flow/component/card/Card.java

@@ -22,6 +22,7 @@
 
 import com.vaadin.flow.component.Component;
 import com.vaadin.flow.component.HasAriaLabel;
+import com.vaadin.flow.component.HasAriaRole;
 import com.vaadin.flow.component.HasComponents;
 import com.vaadin.flow.component.HasSize;
 import com.vaadin.flow.component.Tag;
@@ -40,8 +41,8 @@
 @Tag("vaadin-card")
 @NpmPackage(value = "@vaadin/card", version = "25.2.0")
 @JsModule("@vaadin/card/src/vaadin-card.js")
-public class Card extends Component implements HasSize,
-        HasThemeVariant<CardVariant>, HasComponents, HasAriaLabel {
+public class Card extends Component implements HasSize, HasAriaLabel,
+        HasAriaRole, HasComponents, HasThemeVariant<CardVariant> {
 
     private static final String MEDIA_SLOT_NAME = "media";
     private static final String TITLE_SLOT_NAME = "title";
@@ -340,29 +341,6 @@ public void addComponentAtIndex(int index, Component component) {
         }
     }
 
-    /**
-     * Sets the ARIA role attribute on the card.
-     *
-     * @param role
-     *            the ARIA role, or {@code null} to clear
-     */
-    public void setAriaRole(String role) {
-        if (role == null) {
-            getElement().removeAttribute("role");
-        } else {
-            getElement().setAttribute("role", role);
-        }
-    }
-
-    /**
-     * Gets the ARIA role attribute of the card.
-     *
-     * @return an optional ARIA role of the card if no ARIA role has been set
-     */
-    public Optional<String> getAriaRole() {
-        return Optional.ofNullable(getElement().getAttribute("role"));
-    }
-
     private void doSetTitle(String title) {
         if (title == null) {
             getElement().removeProperty(CARD_TITLE_PROPERTY);

vaadin-card-flow-parent/vaadin-card-flow/src/test/java/com/vaadin/flow/component/card/CardTest.java

@@ -25,6 +25,7 @@
 import org.junit.jupiter.api.extension.RegisterExtension;
 
 import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.HasAriaRole;
 import com.vaadin.flow.component.html.Div;
 import com.vaadin.flow.component.html.Span;
 import com.vaadin.flow.component.shared.HasThemeVariant;
@@ -433,23 +434,8 @@ void addComponentAtIndex_withAlreadyAddedComponent() {
     }
 
     @Test
-    void ariaRoleEmptyByDefault() {
-        Assertions.assertTrue(card.getAriaRole().isEmpty());
-    }
-
-    @Test
-    void setAriaRole_ariaRoleUpdated() {
-        var ariaRole = "custom-role";
-        card.setAriaRole(ariaRole);
-        Assertions.assertTrue(card.getAriaRole().isPresent());
-        Assertions.assertEquals(ariaRole, card.getAriaRole().get());
-    }
-
-    @Test
-    void setAriaRoleNull_ariaRoleUpdated() {
-        card.setAriaRole("custom-role");
-        card.setAriaRole(null);
-        Assertions.assertTrue(card.getAriaRole().isEmpty());
+    void implementsHasAriaRole() {
+        Assertions.assertTrue(HasAriaRole.class.isAssignableFrom(Card.class));
     }
 
     @Test