Add settings to console home page, update settings->security styles (#2144)

console-webapp/src/app/header/header.component.html

@@ -3,7 +3,15 @@
     <button mat-icon-button aria-label="Open menu" (click)="toggleNavPane()">
       <mat-icon>menu</mat-icon>
     </button>
-    <span>Google Registry</span>
+    <span>
+      <a
+        [routerLink]="'/home'"
+        routerLinkActive="active"
+        class="console-app__logo"
+      >
+        Google Registry
+      </a>
+    </span>
     <span class="spacer"></span>
     <app-registrar-selector />
     <button mat-icon-button aria-label="Open FAQ">