Update changelogs from fern repo (#5198)

Co-authored-by: dsinghvi <10870189+dsinghvi@users.noreply.github.com>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-04-28.mdx

@@ -1,3 +1,7 @@
+## 4.103.1
+**`(fix):`** Fix translation directory check to treat the first locale as the default when no explicit `default: true` is set, matching the behavior of the rest of the CLI.
+
+
 ## 4.103.0
 **`(feat):`** Support BCP 47 locale tags (e.g. `ja-JP`, `pt-BR`, `zh-Hans-CN`) in the
 `translations` and `languages` fields of `docs.yml`. Previously only