feat: add favicon support with SVG response and update templates and tests

- Implemented a `favicon` view to serve a custom SVG favicon
- Added `favicon.ico` route to `urls.py`
- Updated `base.html` to include favicon link tag
- Suppressed specific Django ASGI warnings in DEBUG mode
- Added unit tests to verify favicon behavior and response

home/tests.py

@@ -1,5 +1,5 @@
 from django.core import mail
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 from django.urls import reverse
 
 
@@ -36,3 +36,12 @@ class FaqQuestionTests(TestCase):
         self.assertEqual(response.status_code, 200)
         self.assertEqual(len(mail.outbox), 0)
         self.assertContains(response, "Необходимо согласие на обработку персональных данных.")
+
+
+class FaviconTests(SimpleTestCase):
+    def test_favicon_route_returns_icon(self):
+        response = self.client.get(reverse("favicon"))
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "image/svg+xml")
+        self.assertIn(b"<svg", response.content)