Fix required message disappearing after focus

src/main/webapp/app/exercise/import/exercise-import.component.html

@@ -55,7 +55,7 @@
                     <textarea class="form-control" name="description" #description="ngModel" required [(ngModel)]='exerciseInfo.description'
                               [value]="exerciseInfo.description ? exerciseInfo.description : ''"></textarea>
                 </div>
-                <div *ngIf="description.invalid && (description.dirty || description.untouched)" class="alert alert-danger">
+                <div *ngIf="description.invalid && (description.dirty || description.untouched || description.touched)" class="alert alert-danger">
                     <span *ngIf="description.errors?.required" jhiTranslate="exercise.validation.required"></span>
                 </div>
                 <div class="form-group">
@@ -141,7 +141,7 @@
 </div>
 <div *ngIf="isImporting" class="overlay">
     <div class="h-100 w-100 d-flex justify-content-center align-items-center">
-        <div class="spinner"></div>
+        <div id="importResult" class="spinner"></div>
     </div>
 </div>
 <div *ngIf="isLoading" class="spinner-border" role="status"></div>