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/Semester.ts

@@ -62,7 +62,9 @@ export class SCSemesterMeta
    */
   fieldTranslations = {
     de: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance().fieldTranslations.de,
+      ...SCAcademicTermWithoutReferencesMeta.getInstance<
+        SCAcademicTermWithoutReferencesMeta
+      >().fieldTranslations.de,
       acronym: 'Abkürzung',
       endDate: 'Ende',
       eventsEndDate: 'Vorlesungsschluss',
@@ -70,7 +72,14 @@ export class SCSemesterMeta
       startDate: 'Beginn',
     },
     en: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance().fieldTranslations.en,
+      ...SCAcademicTermWithoutReferencesMeta.getInstance<
+        SCAcademicTermWithoutReferencesMeta
+      >().fieldTranslations.en,
+      acronym: 'acronym',
+      endDate: 'end date',
+      eventsEndDate: 'semester ending',
+      eventsStartDate: 'semester beginning',
+      startDate: 'start date',
     },
   };
 
@@ -79,11 +88,15 @@ export class SCSemesterMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance().fieldValueTranslations.de,
+      ...SCAcademicTermWithoutReferencesMeta.getInstance<
+        SCAcademicTermWithoutReferencesMeta
+      >().fieldValueTranslations.de,
       type: 'Semester',
     },
     en: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance().fieldValueTranslations.en,
+      ...SCAcademicTermWithoutReferencesMeta.getInstance<
+        SCAcademicTermWithoutReferencesMeta
+      >().fieldValueTranslations.en,
       type: SCThingType.Semester,
     },
   };