14.0.0-rc.0

This release bumps minimum supported versions to Angular 15.0.0, Bootstrap 5.2.3 and Popper 2.11.6.

It also introduces support for standalone components, which means that you can now import ng-bootstrap inside your
standalone components in 3 ways:

imports: [NgbModule]                     // import all ng-bootstrap components
imports: [NgbNavModule]                  // import a certain type of components
imports: [NgbNav, NgbNavOutlet, etc... ] // import required components individually

The demo site, stackblitzes and documentation have been updated to reflect these changes.