Docs can get in a broken state until page reload

[gweiermann]

Below are two examples of how to reach a broken state.

When it reaches the broken state, it looks broken, and you can't recover from it: clicking a link changes the URL in your address bar, but the page stays the same.

Workaround: reload the page.

Reproduction 1:

1. Head to: https://developer.shopware.com/resources/admin-extension-sdk/
2. Click on Shopware release notes -> Page not found
3. Use the browsers back button
4. You're now in the broken state

Reproduction 2:

1. Head to Ask AI Copilot
2. Click on "Should I create a plugin or an app?"
3. Click on "Apps"
4. You're now in a broken state