[CL-718] nav updates (#15226)

* add basic new nav item styling

* update alt-3 bg color

* add x padding to item

* remove copy left in error

* style app switcher to match nav items

* adding new button hover colors

* add new logo lockups

* use new logos in web vault

* fix color and svg fills

* use set height for nav items

* optimize SVGs

* move if logic

* use rem for icon size

* move shield logo

* use shield svg for collapsed icon

* remove unused eslint disable directive

* run prettier

* remove variables

* update logo hover styles

* use more standard flow control syntax

* update admin console logo svg

* add new hover variables

* use class instead of fill

* use variable for logo hover

* remove unnecessary container

* use hover variable for nav switcher

* use correct variables for fill colors

* update hover state to use variable left in error

* give icon width to preserve text alignment

* remove tree story as functionality no longer supported

* remove nested styles helper

* remove obsolete afterContentInit

* remove tree example from layout story

* remove tree example from secondary layout story

* remove tree example from kitchen sink story

* Fix interaction test

* remove remaining references to tree variant

libs/components/src/navigation/side-nav.component.html

@@ -14,6 +14,7 @@
         '--color-text-alt2': 'var(--color-text-main)',
         '--color-background-alt3': 'var(--color-secondary-100)',
         '--color-background-alt4': 'var(--color-secondary-300)',
+        '--color-hover-contrast': 'var(--color-hover-default)',
       }
     "
     [cdkTrapFocus]="data.isOverlay"