fix: add missing createI18n to vue-i18n mock in AssetsSidebarListView test

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

src/components/sidebar/tabs/AssetsSidebarListView.test.ts

@@ -10,6 +10,11 @@ import AssetsSidebarListView from './AssetsSidebarListView.vue'
 vi.mock('vue-i18n', () => ({
   useI18n: () => ({
     t: (key: string) => key
+  }),
+  createI18n: () => ({
+    global: {
+      t: (key: string) => key
+    }
   })
 }))