refactor: change coolGray with blueGray

Author: einazare

src/app/components/cards/card-stats/card-stats.component.html

@@ -4,10 +4,10 @@
   <div class="flex-auto p-4">
     <div class="flex flex-wrap">
       <div class="relative w-full pr-4 max-w-full flex-grow flex-1">
-        <h5 class="text-coolGray-400 uppercase font-bold text-xs">
+        <h5 class="text-blueGray-400 uppercase font-bold text-xs">
           {{ statSubtitle }}
         </h5>
-        <span class="font-semibold text-xl text-coolGray-700">
+        <span class="font-semibold text-xl text-blueGray-700">
           {{ statTitle }}
         </span>
       </div>
@@ -20,7 +20,7 @@ <h5 class="text-coolGray-400 uppercase font-bold text-xs">
         </div>
       </div>
     </div>
-    <p class="text-sm text-coolGray-400 mt-4">
+    <p class="text-sm text-blueGray-400 mt-4">
       <span class="mr-2" [ngClass]="statPercentColor">
         <i
           [ngClass]="