Finished adaptation for mobile

src/components/AuthHeader/authHeader.scss

@@ -52,7 +52,13 @@
   }
 }
 
-@media (max-width: 575.98px) {
+@media (max-width: 768px) {
+  .auth-header {
+    display: none;
+  }
+}
+
+@media (max-width: 1024px) {
   .auth-header {
     display: none;
   }