test: simplify locale test approach

Author: onmax

tests/index.test.ts

@@ -10,12 +10,10 @@ describe('index page i18n', () => {
     expect(h1.text()).toBe('Spend your crypto in Lugano')
   })
 
-  it('displays Spanish title with query parameter', async () => {
-    const component = await mountSuspended(IndexPage, {
-      route: '/?locale=es',
-    })
+  it('switches to Spanish when locale is changed', async () => {
+    const component = await mountSuspended(IndexPage)
 
-    // Manually set locale to test query param handling
+    // Change locale (simulates what the query param plugin does in production)
     const i18n = component.vm.$i18n
     await i18n.setLocale('es')