refactoring date/date-pipe

goofy-client/apps/goofy/src/app/app.component.spec.ts

...-in-vorgang/kommentar-list-item-in-vorgang.component.html

...-vorgang/kommentar-list-item-in-vorgang.component.spec.ts

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

...avigation/src/lib/build-info/build-info.component.spec.ts

...ostfach-mail/incomming-mail/incomming-mail.component.html

...fach-mail/incomming-mail/incomming-mail.component.spec.ts

.../postfach-mail/outgoing-mail/outgoing-mail.component.html

...stfach-mail/outgoing-mail/outgoing-mail.component.spec.ts

goofy-client/libs/tech-shared/src/lib/date.util.spec.ts

goofy-client/libs/tech-shared/src/lib/date.util.ts

...bs/tech-shared/src/lib/pipe/format-date-with-time.pipe.ts

...nt/libs/tech-shared/src/lib/pipe/format-list-date.pipe.ts

...lage-page/wiedervorlage-form/wiedervorlage.formservice.ts