Replace spinner icon for th FontAwesome one

app/assets/images/spinner.svg

-<svg width='24px' height='24px' xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="xMidYMid" class="uil-default"><rect x="0" y="0" width="100" height="100" fill="none" class="bk"></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(0 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(30 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.08333333333333333s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(60 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.16666666666666666s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(90 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.25s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(120 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.3333333333333333s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(150 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.4166666666666667s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(180 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.5s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(210 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.5833333333333334s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(240 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.6666666666666666s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(270 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.75s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(300 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.8333333333333334s' repeatCount='indefinite'/></rect><rect  x='46.5' y='40' width='7' height='20' rx='5' ry='5' fill='#7f8fa4' transform='rotate(330 50 50) translate(0 -30)'>  <animate attributeName='opacity' from='1' to='0' dur='1s' begin='0.9166666666666666s' repeatCount='indefinite'/></rect></svg>
\ No newline at end of file

app/assets/stylesheets/pages/search.scss

@@ -115,16 +115,8 @@
     }
     .ui-autocomplete-loading + .search-icon {
-      height: 25px;
-      width: 25px;
-      position: absolute;
-      right: 0;
-      background-image: image-url('spinner.svg');
-      fill: red;
-
-      &:before {
-        display: none;
-      }
+      @extend .fa-spinner;
+      @extend .fa-spin;
     }
   }
 }