Fix sonarqube tags i should be em

src/app/detail/containers/detail.component.html

@@ -4,7 +4,7 @@
     </div>
 </div>
 <div *ngIf="objectIsLoading | async" class="row justify-content-center mt-5">
-    <i class="fas fa-circle-notch fa-spin fa-3x"></i>
+    <span class="fas fa-circle-notch fa-spin fa-3x"></span>
     <span class="sr-only">Loading...</span>
 </div>
 <div *ngIf="objectIsLoaded | async">
@@ -13,7 +13,7 @@
 <div *ngIf="!(pristine | async)" class="row mt-5 justify-content-between">
     <div class="col">
         <button (click)="goBackToResult()" class="btn btn-outline-secondary">
-            <i class="fa fa-backward"></i> Back to search results
+            <span class="fa fa-backward"></span> Back to search results
         </button>
     </div>
 </div>
\ No newline at end of file