docs(amount) : exemple grand montant groupé (story + playground)

.playground/pages/composant/input/inputAmount.vue

@@ -14,6 +14,17 @@
       />
     </div>
 
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Grand montant (séparateurs)</h2>
+      <MalioInputAmount
+        v-model="bigValue"
+        label="Budget"
+      />
+      <div class="mt-2 rounded border p-3 text-sm">
+        <p>modelValue émis : <code>{{ bigValue || 'vide' }}</code></p>
+      </div>
+    </div>
+
     <div class="rounded-lg border p-4">
       <h2 class="mb-4 text-xl font-bold">Désactivé</h2>
       <MalioInputAmount
@@ -77,4 +88,5 @@
 import { ref } from 'vue'
 
 const readonlyFilledAmount = ref('1250.00')
+const bigValue = ref('1234567.89')
 </script>