new apps.lyric.views login FBV; new login path in .urls; new UT in .tests.test_views to assert the FBV's redirect to '/'

src/apps/lyric/tests/test_views.py

@@ -33,3 +33,8 @@ class SendLoginEmailViewTest(TestCase):
             "Check your email!—there you'll find a magic login link. But hurry… it's only temporary!",
         )
         self.assertEqual(message.tags, "success")
+
+class LoginViewTest(TestCase):
+    def test_redirects_to_home_page(self):
+        response = self.client.get("/apps/lyric/login?token=abc123")
+        self.assertRedirects(response, "/")