Navigation sidebar state not retained between sessions

[lukas-braune]

Current Behavior

The navigation sidebar is configured to be hidden by default. Users are able to show/expand the sidebar manually. However, the chosen state (shown or hidden) does not persist across browser sessions or on page reloads. This requires users to repeatedly set their preference, leading to a less efficient user experience.

Proposed Behavior

The navigation sidebar should remember the user's last state and retain it across browser sessions and page reloads. Once a user sets their preference by showing or hiding the sidebar, this choice should be preserved until the user decides to change it, even when they navigate away from the page or close and reopen the browser.

Checklist

• I have read and understand the contributing guidelines
• I have checked the existing issues for whether this enhancement was already requested