[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/nav-base.component.ts

@@ -55,16 +55,6 @@ export abstract class NavBaseComponent {
     matrixParams: "ignored",
   };
 
-  /**
-   * If this item is used within a tree, set `variant` to `"tree"`
-   */
-  @Input() variant: "default" | "tree" = "default";
-
-  /**
-   * Depth level when nested inside of a `'tree'` variant
-   */
-  @Input() treeDepth = 0;
-
   /**
    * If `true`, do not change styles when nav item is active.
    */