fixed input-group with rounded-0 on login/register

build/scss/pages/_login_and_register.scss

@@ -72,9 +72,9 @@
 
     .input-group-text {
       background-color: transparent;
-      border-bottom-right-radius: $border-radius !important;
+      border-bottom-right-radius: $border-radius;
       border-left: 0;
-      border-top-right-radius: $border-radius !important;
+      border-top-right-radius: $border-radius;
       color: #777;
       transition: $input-transition;
     }