Issue Summary

When accessing Confluence using a mobile browser, the sidebar is not visible. This issue affects navigation and usability, as users are unable to access sidebar features and links. 

Steps to Reproduce

1. Open a mobile browser on a smartphone (e.g., Chrome, Safari).
2. Navigate to the Confluence site.
3. Attempt to access the sidebar.

Expected Results

The sidebar should be visible and accessible, similar to the desktop version, providing users with navigation options and access to sidebar links.

Actual Results

The sidebar is missing, making it difficult for users to navigate through the Confluence site.

Workaround

Users can switch the mobile browser to desktop mode, which restores the sidebar visibility, although this is not an ideal solution for mobile users.