Remove error 'User already exists.' from Register.Vue

frontend/src/locales/de.json

@@ -54,8 +54,7 @@
     "no-transactionlist": "Es gab leider einen Fehler. Es wurden keine Transaktionen vom Server übermittelt.",
     "no-user": "Kein Benutzer mit diesen Anmeldedaten.",
     "session-expired": "Die Sitzung wurde aus Sicherheitsgründen beendet.",
-    "unknown-error": "Unbekanter Fehler: ",
-    "user-already-exists": "Ein Benutzer mit diesen Daten existiert bereits."
+    "unknown-error": "Unbekanter Fehler: "
   },
   "followUs": "folge uns:",
   "footer": {

frontend/src/locales/en.json

@@ -54,8 +54,7 @@
     "no-transactionlist": "Unfortunately, there was an error. No transactions have been sent from the server.",
     "no-user": "No user with this credentials.",
     "session-expired": "The session was closed for security reasons.",
-    "unknown-error": "Unknown error: ",
-    "user-already-exists": "A user with this data already exists."
+    "unknown-error": "Unknown error: "
   },
   "followUs": "follow us:",
   "footer": {

frontend/src/pages/Register.spec.js

@@ -139,24 +139,6 @@ describe('Register', () => {
           await flushPromises()
         }
 
-        describe('server sends back error "User already exists."', () => {
-          beforeEach(async () => {
-            await createError('GraphQL error: User already exists.')
-          })
-
-          it('shows no error message on the page', () => {
-            // don't show any error on the page! against boots
-            expect(wrapper.vm.showPageMessage).toBe(false)
-            expect(wrapper.find('.test-message-headline').exists()).toBe(false)
-            expect(wrapper.find('.test-message-subtitle').exists()).toBe(false)
-            expect(wrapper.find('.test-message-button').exists()).toBe(false)
-          })
-
-          it('toasts the error message', () => {
-            expect(toastErrorSpy).toBeCalledWith('error.user-already-exists')
-          })
-        })
-
         describe('server sends back error "Unknown error"', () => {
           beforeEach(async () => {
             await createError(' – Unknown error.')

frontend/src/pages/Register.vue

@@ -142,16 +142,7 @@ export default {
           this.showPageMessage = true
         })
         .catch((error) => {
-          let errorMessage
-          switch (error.message) {
-            case 'GraphQL error: User already exists.':
-              errorMessage = this.$t('error.user-already-exists')
-              break
-            default:
-              errorMessage = this.$t('error.unknown-error') + error.message
-              break
-          }
-          this.toastError(errorMessage)
+          this.toastError(this.$t('error.unknown-error') + error.message)
         })
     },
   },