Merge branch 'master' into OZG-5833-Barrierefreiheit-Layoutanpassungen

alfa-client/apps/alfa/src/styles/material/_formfield.scss

...s/navigation/src/lib/build-info/build-info.component.html

...s/navigation/src/lib/build-info/build-info.component.scss

...ion/src/lib/header-container/header/header.component.html

...ion/src/lib/header-container/header/header.component.scss

...er/outgoing-mail-error/outgoing-mail-error.component.html

...er/outgoing-mail-error/outgoing-mail-error.component.scss

alfa-client/libs/ui/src/lib/assets/update.svg

...ser-assistance/src/lib/help-menu/help-menu.component.html

...ser-assistance/src/lib/help-menu/help-menu.component.scss

.../user-assistance/src/lib/help-menu/help-menu.component.ts

.../lib/wiedervorlage-icon/wiedervorlage-icon.component.html

.../lib/wiedervorlage-icon/wiedervorlage-icon.component.scss

...ext-frist-button/vorgang-next-frist-button.component.html

...ext-frist-button/vorgang-next-frist-button.component.scss