feat: add quantity field to product CRUD; implement image upload and condition handling in product dialog

client/src/app/components/ps-product-crud/ps-product-crud.component.html

@@ -43,6 +43,11 @@
         <td mat-cell *matCellDef="let el">{{ el.priceTtc | number:'1.2-2' }}</td>
       </ng-container>
 
+      <ng-container matColumnDef="quantity">
+        <th mat-header-cell *matHeaderCellDef mat-sort-header>Quantité</th>
+        <td mat-cell *matCellDef="let el">{{ el.quantity }}</td>
+      </ng-container>
+
       <ng-container matColumnDef="actions">
         <th mat-header-cell *matHeaderCellDef>Actions</th>
         <td mat-cell *matCellDef="let el">