add styles fixes

Author: Awakich

projects/social_platform/src/app/office/shared/carousel/carousel.component.scss

@@ -43,7 +43,7 @@
     z-index: 1;
     padding: 5px;
     cursor: pointer;
-    background-color: rgb(30 30 30 / 50%);
+    background-color: #37373780;
     border: none;
     border-radius: 100%;
   }
@@ -77,4 +77,4 @@
       transform: translate(-50%, -50%) scale(1);
     }
   }
-}
+}