Incorporation of Enhanced Sub-Navigation Panel Functionality

New functionality has been introduced to improve the flexibility and usability of the SSU sub-navigation panel. The following enhancements have been implemented:

• The panel now has a default width of 250 px.
• Users cannot expand the panel beyond the default width of 250 px.
• The panel can be resized down to a minimum width of 60 px.
• Users now have the ability to fully collapse the panel, allowing for an optimized view of the main content area.