fix: update SEND_BUTTON locator to use aria-label for improved accessibility

Author: Avijit-Microsoft

src/App/src/components/ChatInput.tsx

@@ -122,6 +122,7 @@ export const ChatInput = React.memo(function ChatInput({
             size="small"
             onClick={handleSubmit}
             disabled={!inputValue.trim() || isLoading}
+            aria-label="Send"
             style={{
               minWidth: '32px',
               height: '32px',

tests/e2e-test/pages/HomePage.py

@@ -24,7 +24,7 @@ class HomePage(BasePage):
 
     # Input and send locators
     ASK_QUESTION_TEXTAREA = "//input[@placeholder='Type a message']"
-    SEND_BUTTON = "//button[2]//span[1]"
+    SEND_BUTTON = "//button[@aria-label='Send']"
 
     # Response and status locators
     TYPING_INDICATOR = "//div[@class='typing-indicator']"