refactor: change coolGray with blueGray

Author: einazare

src/app/layouts/auth/auth.component.html

@@ -3,7 +3,7 @@
   <main>
     <section class="relative w-full h-full py-40 min-h-screen">
       <div
-        class="absolute top-0 w-full h-full bg-coolGray-800 bg-no-repeat bg-full"
+        class="absolute top-0 w-full h-full bg-blueGray-800 bg-no-repeat bg-full"
         style="background-image: url('assets/img/register_bg_2.png')"
       ></div>
       <router-outlet></router-outlet>