fix(tests): make frontend tests compatible with current frontend setup

front/test/setup/mock-audio-context.ts

@@ -0,0 +1,9 @@
+import { AudioContext } from 'standardized-audio-context-mock'
+import { vi, beforeAll } from 'vitest'
+
+beforeAll(() => {
+  vi.mock('standardized-audio-context', () => ({
+    AudioContext
+  }))
+})
+

front/test/setup/mock-vue-i18n.ts

@@ -0,0 +1,14 @@
+import { config } from '@vue/test-utils'
+import { createI18n } from 'vue-i18n'
+import en from '~/locales/en_US.json'
+
+const i18n = createI18n({
+  legacy: false,
+  locale: 'en',
+  messages: {
+    en
+  }
+})
+
+config.global.plugins ??= []
+config.global.plugins.push(i18n)