Lot of visual improvements

src/app/active-list-tasks/task-display/task-display.component.html

@@ -5,8 +5,26 @@
         <div class="input-container">
             <input type="text" [formControl]="titleControl" />
         </div>
-        <button mat-button type="button" class="expand">
+        <button mat-button type="button" class="expand" (click)="expand()">
             <mat-icon>expand_more</mat-icon>
         </button>
     </div>
+    <div [ngClass]="getExpendedClass()">
+        <div class="container">
+            <div class="description-container">
+                <label for="description">
+                    Description
+                </label>
+                <textarea id="description"></textarea>
+            </div>
+            <div class="actions">
+                <button matTooltip="Définir une alerte dans X minutes">
+                    <mat-icon>update</mat-icon>
+                </button>
+                <button>
+                    <mat-icon>delete</mat-icon>
+                </button>
+            </div>
+        </div>
+    </div>
 </div>