fix(DsfrAlertDemo): 🐛 corrige import

Author: laruiss

src/components/DsfrAlert/docs-demo/DsfrAlertDemo.vue

@@ -1,11 +1,11 @@
 <script lang="ts" setup>
+import type { TitleTag } from '../../../common-types'
+import type { DsfrAlertType } from '../DsfrAlert.vue'
+
 import { ref } from 'vue'
 
-import type { DsfrAlertType } from '../DsfrAlert.vue'
 import DsfrAlert from '../DsfrAlert.vue'
 
-import type { TitleTag } from '../../common-types'
-
 const defaultAlerts: {
   [key: string]: {
     id: string