change(accessibility): Remove double focus on routerLink button

Related to [Accessibilité] - Boutons liens (#502 - closed)

What does this MR do and why?

• app-button should always use (action) for accesibility (removed routerLink + tabindex="none", we should keep them for . Also renamed click)
• Clickable div should all work with keybord (ensure keyup.enter exists)
• radio-options -> Can't go through all options with keyboard
• listitems roles should be embed + tabs shouldn't be listitems

src/app/admin/components/manage-jobs/attached-users/attached-users.component.html

 <div *ngIf="users.data.users && users.data.users.length !== 0">
   <p *ngFor="let user of users.data.users">
-    <span tabindex="0" (click)="goToManageUsers()" (keyup.enter)="goToManageUsers()">
+    <span role="button" tabindex="0" (click)="goToManageUsers()" (keyup.enter)="goToManageUsers()">
       {{ user.name }} {{ user.surname }} - {{ user.email }}
     </span>
   </p>