💄 add loader description to title

src/app/calculator/calculator.component.html

@@ -2,7 +2,7 @@
   <hs-panel-header name="adjuster" [title]="'CALCULATOR.panelHeader' | translate">
     <extra-buttons>
       <!-- LOADER -->
-      <div class="spinner-border spinner spinner-sm mx-2" role="status" *ngIf="calcService.lpisLoading">
+      <div class="spinner-border spinner spinner-sm mx-2" role="status" title="{{ 'CALCULATOR.loading' | translate }}..." *ngIf="calcService.lpisLoading">
         <span class="visually-hidden">{{ 'CALCULATOR.loading' | translate }}...</span>
       </div>
     </extra-buttons>