[A11y bugfix] reaction item aria narration (#4635)

* add aria-label

* Change files

Author: dmceachernmsft

change-beta/@azure-communication-react-65051319-8cfd-4640-8453-20b68de47ab8.json

@@ -0,0 +1,9 @@
+{
+  "type": "patch",
+  "area": "fix",
+  "workstream": "A11y",
+  "comment": "Add reaction items narratro strings",
+  "packageName": "@azure/communication-react",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

change/@azure-communication-react-65051319-8cfd-4640-8453-20b68de47ab8.json

@@ -0,0 +1,9 @@
+{
+  "type": "patch",
+  "area": "fix",
+  "workstream": "A11y",
+  "comment": "Add reaction items narratro strings",
+  "packageName": "@azure/communication-react",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

packages/react-components/src/components/ReactionButton.tsx

@@ -133,6 +133,7 @@ export const ReactionButton = (props: ReactionButtonProps): JSX.Element => {
                 dismissMenu();
               }}
               className={classname}
+              ariaLabel={emojiButtonTooltip.get(emoji)}
             />
           </TooltipHost>
         );