OZG-1414 OZG-3131 Make user name available for screenreaders

goofy-client/libs/navigation/src/lib/header-container/header/user-profile-in-header-container/user-profile-in-header/user-profile-in-header.component.html

@@ -23,7 +23,7 @@
     unter der Lizenz sind dem Lizenztext zu entnehmen.
 
 -->
-<button mat-icon-button [matMenuTriggerFor]="accountMenu" class="big-button" aria-label="Benutzerkonto" data-test-id="user-icon-button">
+<button mat-icon-button [matMenuTriggerFor]="accountMenu" class="big-button" data-test-id="user-icon-button">
 	<goofy-client-user-icon [userProfileStateResource]="currentUserResource"></goofy-client-user-icon>
 </button>
 

goofy-client/libs/user-profile/src/lib/user-icon/user-icon.component.html

@@ -26,7 +26,7 @@
 <goofy-client-spinner [stateResource]="userProfileStateResource" diameter="30" padding="3">
 	<div [matTooltipDisabled]="disableTooltip" data-test-class="user-profile-icon"
 		[class.initials]="!!userProfileStateResource.resource || userProfileStateResource.error"
-		class="user-profile" [matTooltip]="tooltip">
+		class="user-profile" [matTooltip]="tooltip" [attr.aria-label]="tooltip">
 
 	<ng-container *ngIf="userProfileStateResource.resource; else noUser">
 		<span data-test-class="user-profile-assigned">{{ initials }}</span>