fix(types): improve with strict mode (#1041)

src/runtime/ui.config/elements/dropdown.ts

@@ -27,7 +27,7 @@ export default {
     },
     avatar: {
       base: 'flex-shrink-0',
-      size: '3xs'
+      size: '3xs' as const
     },
     shortcuts: 'hidden md:inline-flex flex-shrink-0 gap-0.5 ms-auto'
   },
@@ -49,4 +49,4 @@ export default {
     ring: 'before:ring-1 before:ring-gray-200 dark:before:ring-gray-700',
     background: 'before:bg-white dark:before:bg-gray-700'
   }
-}
+}