fix: add translations for every SCThing

fix: add field translations for  basic interfaces

fix: add translations for Message, Ticket & Video

fix: add translations for AcademicEvent, Article, Book and Building

fix: add translations

fix: add translations for Dish, Floor, Person and Room

fix: finalize  known translations

fix: add translations for setting

fix: add empty translations for fieldValues

style: applied tslint rules

fix: add missing fieldValueTranslations

fix: remove illegal nested translations

src/core/things/Ticket.ts

@@ -67,10 +67,18 @@ export class SCTicketMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance().fieldTranslations.de,
+      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+        .de,
+      approxWaitingTime: 'ungefähre Wartezeit',
+      currentTicketNumber: 'aktuelle Ticketnummer',
+      serviceType: 'Service Kategorie',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance().fieldTranslations.en,
+      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+        .en,
+      approxWaitingTime: 'approximate waiting time',
+      currentTicketNumber: 'current ticket number',
+      serviceType: 'type of service',
     },
   };
 
@@ -79,11 +87,13 @@ export class SCTicketMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance().fieldValueTranslations.de,
+      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+        .fieldValueTranslations.de,
       type: 'Ticket',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance().fieldValueTranslations.en,
+      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+        .fieldValueTranslations.en,
       type: SCThingType.Ticket,
     },
   };