🎨 Palette: Improve Contact form accessibility

💡 What: Added ARIA roles to form status messages and hid decorative icons.
🎯 Why: Screen readers were missing dynamic success/error messages on form submission.
♿ Accessibility:
- Added `role="alert"` and `aria-live="polite"` to success, error, and rate-limit messages.
- Added `aria-hidden="true"` to decorative icons in the contact info section.

Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>

src/pages/__tests__/Contact.test.tsx

@@ -116,6 +116,8 @@ describe('Contact Page', () => {
     // Verify success message
     const successMessage = await screen.findByText('Message sent successfully!');
     expect(successMessage).toBeTruthy();
+    expect(successMessage.getAttribute('role')).toBe('alert');
+    expect(successMessage.getAttribute('aria-live')).toBe('polite');
   });
 
   it('sanitizes input before sending', async () => {
@@ -193,4 +195,32 @@ describe('Contact Page', () => {
     // EmailJS should NOT be called
     expect(emailjs.send).not.toHaveBeenCalled();
   });
+
+  it('shows error message with alert role when submission fails', async () => {
+    // Mock failure
+    const sendMock = vi.mocked(emailjs.send);
+    sendMock.mockRejectedValueOnce(new Error('Network error'));
+
+    render(<Contact />);
+
+    // Fill out the form
+    fireEvent.change(screen.getByLabelText('Name'), { target: { value: 'John Doe' } });
+    fireEvent.change(screen.getByLabelText('Email'), { target: { value: 'john@example.com' } });
+    fireEvent.change(screen.getByLabelText('Subject'), { target: { value: 'Test Subject' } });
+    fireEvent.change(screen.getByLabelText('Message'), { target: { value: 'Hello world' } });
+
+    // Submit
+    fireEvent.click(screen.getByRole('button', { name: 'Send Message' }));
+
+    // Wait for submission attempt
+    await waitFor(() => {
+      expect(emailjs.send).toHaveBeenCalled();
+    });
+
+    // Verify error message
+    const errorMessage = await screen.findByText('Failed to send message.');
+    expect(errorMessage).toBeTruthy();
+    expect(errorMessage.getAttribute('role')).toBe('alert');
+    expect(errorMessage.getAttribute('aria-live')).toBe('polite');
+  });
 });