Fix css issues

1. need fixed leftbar

2. at bottom of leftnav, there should be fixed position for username and role, check this link
please check attachment

3. Notice the sub menus here :https://colorlib.com/polygon/gentelella/index.html
need vertical lines in left menu as done in this link

4. Notice the root menu icons here: https://getbootstrap.com/docs/5.0/examples/sidebars/#
can u add root menu like

Categories, child = import
Products, child = import
Invoices
User Management,
Role management

5. can u add bootstrap dropdown menu top right side for logout, etc

Code files
https://www.dropbox.com/scl/fi/hn2qi5kww19ytyk0kzm0z/files.zip?rlkey=dkeommy5essv211ajhrzqu588&st=awz0aom2&dl=0