Hide bit-icon component from screen readers by default (#14295)

* adds aria-hidden to bit-icon when no aria-label provided

* add ariaLabel to logo svg usages

* add ariaLabel documentation

* default ariaLable value to undefined

* add logo label to translations

* adds i18n pipe to component

* Add binding to example docs

libs/auth/src/angular/anon-layout/anon-layout.component.html

@@ -10,7 +10,7 @@
     [routerLink]="['/']"
     class="tw-w-[128px] tw-block tw-mb-12 [&>*]:tw-align-top"
   >
-    <bit-icon [icon]="logo"></bit-icon>
+    <bit-icon [icon]="logo" [ariaLabel]="'appLogoLabel' | i18n"></bit-icon>
   </a>
 
   <div