message: fix(theme): fix pure default value
diff: @@ -25,4 +25,4 @@ export const useThemeAuthor = (): ComputedRef<AuthorInfo[]> => {
  };
  export const usePure = (): ComputedRef<boolean> =>
  - computed(() => useThemeData().value.pure !== false);
  + computed(() => Boolean(useThemeData().value.pure));
  