refactor : migrate UI to Malio layer-ui components (MalioButton, MalioDrawer, MalioSelectCheckbox)

- Replace all AppDrawer with MalioDrawer across 10 drawer components
- Replace native <button> with MalioButton/MalioButtonIcon in all pages and components
- Fix TimeTrackingExportDrawer: use MalioSelectCheckbox for multi-select filters
- Add Malio design system colors (m-btn-*, m-disabled, m-surface) to tailwind.config.ts
- Align toggle button heights with MalioButton (h-[40px])

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/components/task/TaskBookStackLinks.vue

@@ -57,13 +57,14 @@
                 >
                     {{ link.title }}
                 </a>
-                <button
-                    type="button"
-                    class="ml-auto shrink-0 text-neutral-300 hover:text-red-500"
+                <MalioButtonIcon
+                    icon="mdi:close"
+                    aria-label="Supprimer le lien"
+                    variant="ghost"
+                    icon-size="16"
+                    button-class="ml-auto shrink-0 text-neutral-300 hover:text-red-500"
                     @click="handleRemove(link.id)"
-                >
-                    <Icon name="mdi:close" size="16" />
-                </button>
+                />
             </div>
         </div>