Introduce new left side menu.

Build new left side menu

Initial Menu content:

• Root menu: [Icon] Identity Provider

  • Sub menu: OAuth

  • Sub menu: SAML

• Root manu: [Icon] User profile

• Root menu: [Icon] Other Services

• Root menu: [Icon] Authentication

  • Sub menu: Realms

  • Sub menu: Flows

  • Sub menu: Routes

All pages hooked with menu items points to empty pages.
The list of menu items is incomplete at this point and may change.