OP#16910 Language switchin works now through all 4 languages.

angular.json

src/app/app.component.ts

src/app/components/common/error/error.component.html

...on/generic-file-upload/generic-file-upload.component.html

.../components/common/info-dialog/info-dialog.component.html

src/app/components/common/navigation/navigation.component.ts

...components/common/not-found/page-not-found.component.html

...nts/common/settings-dialog/settings-dialog.component.html

...components/dcc/dcc-byte-data/dcc-byte-data.component.html

...app/components/dcc/dcc-contact/dcc-contact.component.html

src/app/components/dcc/dcc-data/dcc-data.component.html

...cc/dcc-identifications/dcc-identifications.component.html

...luence-conditions/dcc-influence-conditions.component.html

.../dcc-localised-string/dcc-localised-string.component.html

...rement-equipment/dcc-measurement-equipment.component.html

...surement-metadata/dcc-measurement-metadata.component.html

...p/components/dcc/dcc-quantity/dcc-quantity.component.html

...p/components/dcc/dcc-software/dcc-software.component.html

...ents/dcc/dcc-used-methods/dcc-used-methods.component.html

src/app/components/dcc/dcc.component.html