feat(ui): Added loader inside ui-lib. (TV-859)

Squashed commit of the following:

commit 21101f1de202e87c27ae7832669e484d163e66b4
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Thu Oct 28 11:01:09 2021 +0200

    Updated imports

commit 0d8bee6ac8967f5ddb480eff429e91db812b0f16
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Thu Oct 28 10:42:35 2021 +0200

    Now using loader from inside libs

libs/ui/loader/loader.component.scss

@@ -10,6 +10,8 @@
 
 .ui-loader {
   display: flex;
+  flex-direction: column;
+  gap: $digi--layout--gutter--s;
   align-items: center;
   justify-content: center;
 
@@ -37,4 +39,8 @@
       width: 2.5rem;
     }
   }
+
+  &__text {
+    font-size: var(--digi--typography--font-size--s);
+  }
 }