Language picker in docs does nothing

[gempir]

Description

When visiting https://opencode.ai/docs/config/ or any other docs

For whatever reason I get served the german site, I assume you are guessing this based on IP location, not my preferred Browser language (navigator.language).

To make this worse, then picking English from the dropdown just refreshes the page and I'm still on german.

Browser: Helium 0.12.3.1 with disabled ublock origin for opencode docs.

Plugins

No response

OpenCode version

No response

Steps to reproduce

1. Get served a different language
2. Use the language picker at the bottom

Screenshot and/or share link

Operating System

macOS 26.5

Terminal

No response

This issue might be a duplicate of existing issues. Please check:

• Problem with language selector in documentation #22415: Problem with language selector in documentation
• Can't set language to english in documentation #20655: Can't set language to english in documentation
• opencode.ai/docs - can't change language #15904: opencode.ai/docs - can't change language
• Changing your language from English to another language does not allow you to change it back in https://opencode.ai/docs #20362: Changing your language from English to another language does not allow you to change it back
• Website: Docs language selector can't switch back to English #17665: Website: Docs language selector can't switch back to English
• Docs page language selection dropdown doesn't switch from Japanese to English #22219: Docs page language selection dropdown doesn't switch from Japanese to English
• Docs won't change to English upon selecting the language in the dropdown #18541: Docs won't change to English upon selecting the language in the dropdown
• [web] Cannot fallback docs to english #15984: [web] Cannot fallback docs to english
• [Bug]: Language selection fails when switching from non-English to English #16278: Language selection fails when switching from non-English to English
• Changing language from Spanish to English doesn't work #14409: Changing language from Spanish to English doesn't work