Change taskLists selection display.

src/app/task-lists/task-lists.component.html

@@ -15,9 +15,11 @@
           {{taskList.tasks?.length}} tâches
         </ng-template>
       </ng-container>
+
+      <mat-icon *ngIf="isSelectionModeEnabled() && isSelected(taskList)" class="selection-icon">done</mat-icon>
     </div>
     {{taskList.name}}
-    <ng-container *ngIf="isSelectionModeEnabled() && isSelected(taskList)">
+    <ng-container >
       SELECTED
     </ng-container>
   </div>

src/app/task-lists/task-lists.component.scss

@@ -21,6 +21,16 @@
       border-radius: .5rem;
       background-color: aliceblue;
       margin-bottom: .5rem;
+      position: relative;
+
+      .selection-icon {
+        position: absolute;
+        bottom: 0;
+        right: 0;
+        font-size: 3rem;
+        width: 3rem;
+        height: 3rem;
+      }
     }
   }
 }