OZG-400 subnavigation button

goofy-client/libs/user-profile/src/index.ts

...ainer/assign-user-profile-button-container.component.html

...ainer/assign-user-profile-button-container.component.scss

...er/assign-user-profile-button-container.component.spec.ts

...ntainer/assign-user-profile-button-container.component.ts

...ib/user-icon-container/user-icon-container.component.html

...y-client/libs/user-profile/src/lib/user-profile.module.ts

...tion-buttons/vorgang-detail-action-buttons.component.html

...n-buttons/vorgang-detail-action-buttons.component.spec.ts