feat: [AoU-1603] Remove user guide from menu

src/app/app.component.html

src/app/app.component.ts

...ontal/main-toolbar-desktop-horizontal.presentational.html

...izontal/main-toolbar-desktop-horizontal.presentational.ts

...ain-toolbar/main-toolbar/main-toolbar.presentational.html

.../main-toolbar/main-toolbar/main-toolbar.presentational.ts

...s/presentationals/user-menu/user-menu.presentational.html

...nts/presentationals/user-menu/user-menu.presentational.ts