Update browser gem to version 5.3.1 (#23945)

config/locales/en.yml

@@ -1448,6 +1448,7 @@ en:
       electron: Electron
       firefox: Firefox
       generic: Unknown browser
+      huawei_browser: Huawei Browser
       ie: Internet Explorer
       micro_messenger: MicroMessenger
       nokia: Nokia S40 Ovi Browser
@@ -1457,6 +1458,7 @@ en:
       qq: QQ Browser
       safari: Safari
       uc_browser: UC Browser
+      unknown_browser: Unknown Browser
       weibo: Weibo
     current_session: Current session
     description: "%{browser} on %{platform}"
@@ -1469,9 +1471,10 @@ en:
       chrome_os: ChromeOS
       firefox_os: Firefox OS
       ios: iOS
+      kai_os: KaiOS
       linux: Linux
       mac: macOS
-      other: unknown platform
+      unknown_platform: Unknown Platform
       windows: Windows
       windows_mobile: Windows Mobile
       windows_phone: Windows Phone