refactor(i18n): change locale files to yaml format, closes #96 (#97)

src/modules/i18n.ts

@@ -5,9 +5,10 @@ import { UserModule } from '~/types'
 // https://vitejs.dev/guide/features.html#glob-import
 const messages = Object.fromEntries(
   Object.entries(
-    import.meta.globEager('../../locales/*.json'))
+    import.meta.globEager('../../locales/*.y(a)?ml'))
     .map(([key, value]) => {
-      return [key.slice(14, -5), value.default]
+      const yaml = key.endsWith('.yaml')
+      return [key.slice(14, yaml ? -5 : -4), value.default]
     }),
 )