Bug: Language switch button is missing from the interface

[TimoEvt]

Summary

Language switch button is missing from the user interface, preventing users from changing the site language.

Title:
Language switch button is missing from the interface

Environment:

Browser: Safari Version 16.5 (18615.2.9.11.4)
OS: macOS Ventura 13.4
Platform: https://codebattle.hexlet.io/

Reproduction steps

Steps to reproduce:

1.Open the Codebattle website in Safari
2.Navigate to the homepage or any section of the site
3.Try to locate a language switch option

Expected result

A visible and accessible button for changing the interface language (e.g. EN / RU / DE) should be available, allowing the user to switch the UI language.

Actual result

No language switch button is present anywhere in the UI. The user cannot change the interface language.
And as result:
May create difficulties during onboarding for users unfamiliar with the default language

Browsers

Safari

OS

Mac

[Ekaterina313]

Browsers
Yandex 25.4.0.1973 (64-bit)

OS
Windows 10 Home

[LeraKulida100]

Summary

No language switch

Reproduction steps

Open the homepage at https://codebattle.hexlet.io/
Log in to your personal account

Expected result

There is a button to change the interface language

Actual result

User cannot change the interface language.

Browsers
FireFox 138.0.3 (32-битная)

OS
Windows 11

[Cherrystone82]

Summary:
No possibility to switch the language from English to Russian and vice versa
steps:
- Find and click on the language switch (flag icon/drop-down list)
- Select the language “Russian”
- Check the interface text change (e.g. button “Login” → “Login”)
- Switch the language back to English
- Verify that the interface is back to English
Expected result:
After selecting the Russian language, the interface switches to Russian (buttons, menus and other elements change accordingly)
When switching back to English, the interface is correctly displayed in English
Functional elements are not disturbed when switching languages
Actual result:

User cannot change the interface language:

Browsers:

• Safari
• Chrome Version: 137.0.7151.69 (arm64)
• Firefox Version: 134.0
  OS
  macOS Sequoia 15.5

[GutenevaVictoria]

Summary:
Отсутствует функционал переключения языка интерфейса сайта

Reproduction steps:

• Нажать на никнейм в правом верхнем углу
• Нажать "Settings"
• Переключить язык с "En" на "Ru"

Expected result
Доступна кнопка переключения языка, язык изменяется корректно.

Actual result:
Возможность изменения языка отсутствует

Browsers
Chrome Версия: 138.0.7204.169 (Официальная сборка) (64 бит)
OS: Windows 11
Current version: 376ef8e

[Kudrya33]

No possibility to switch the language from English to Russian and vice versa

Browser
Chrome 138.0.7204.169 (64 )
OS: Windows 11

[V0T0S]

Summary
There is no way to switch the interface language of the site interface

Steps for reproduction

• Open main page without any sign-in

Expected result
The header or footer of the page has an item (button, link or drop-down menu/list) that makes it possible for visitors switching the interface language presented as the name of the language, its two or three-letter code or the national flag.

Actual result
The mentioned item is missing.

Environment

• Browser: Firefox (141.0.3 64-bit)
• OS: Linux (x86_64)

Current version: 2816702

[vtm9]

Relabeling as enhancement-proposal: the UI language can already be changed via Settings → Locale (UserSettingsForm → i18n.changeLanguage, persisted). What's missing is a discoverable header/navbar quick-switcher. The enhancement is to add that header control calling the same changeLanguage + persisting locale.