Update navbar.rb
Update navbar.rb

Fix target attribute for collapse from bootstrap 4 "data-target" to bootstrap 5 "data-bs-target" to enable hamburger / collapse button to work again. See https://getbootstrap.com/docs/5.0/components/collapse/  and https://getbootstrap.com/docs/5.0/components/navbar/ examples referring to bs-target
thooams/Ui-Bibz,thooams/Ui-Bibz,thooams/Ui-Bibz