minor improvement - Make the home page navigation sidebar collapsible

[NBForgeLab]

This PR adds a collapsible navigation sidebar to the Home page and persists its state across navigation and app restarts.

navigation-sidebar-collapsible.mp4

Changes

• Add a collapse/expand toggle to the Home page sidebar.
• Position the toggle on the divider edge between the sidebar and the page content.
• Collapse the sidebar to an icon-only layout while keeping the existing navigation actions accessible.
• Persist the sidebar collapsed state in PreferencesContext / PreferencesProvider.
• Restore the saved state when returning to the Home page or reopening the app.

Notes

• Mobile behavior is unchanged.
• The persisted state is implemented as a user preference: homePageMenuIsCollapsed.

Testing

• Verified the modified files with eslint.
• Confirmed the implementation only touches the Home page menu and preferences wiring.

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.