Changed the unsubscribed mutation since we don't need language hier.

frontend/src/graphql/mutations.js

@@ -1,13 +1,13 @@
 import gql from 'graphql-tag'
 
 export const subscribeNewsletter = gql`
-  mutation($email: String!, $language: String!) {
+  mutation ($email: String!, $language: String!) {
     subscribeNewsletter(email: $email, language: $language)
   }
 `
 
 export const unsubscribeNewsletter = gql`
-  mutation($email: String!, $language: String!) {
-    unsubscribeNewsletter(email: $email, language: $language)
+  mutation ($email: String!) {
+    unsubscribeNewsletter(email: $email)
   }
 `

frontend/src/store/store.test.js

@@ -1,15 +1,7 @@
 import { mutations, actions } from './store'
 
-const {
-  language,
-  email,
-  token,
-  username,
-  firstName,
-  lastName,
-  description,
-  newsletterState,
-} = mutations
+const { language, email, token, username, firstName, lastName, description, newsletterState } =
+  mutations
 const { login, logout } = actions
 
 describe('Vuex store', () => {

frontend/src/views/Pages/UserProfile/UserCard_Newsletter.spec.js

@@ -65,7 +65,6 @@ describe('UserCard_Newsletter', () => {
           mutation: unsubscribeNewsletter,
           variables: {
             email: 'peter@lustig.de',
-            language: 'de',
           },
         })
       })

frontend/src/views/Pages/UserProfile/UserCard_Newsletter.vue

@@ -43,7 +43,7 @@ export default {
           mutation: this.newsletterState ? subscribeNewsletter : unsubscribeNewsletter,
           variables: {
             email: this.$store.state.email,
-            language: this.$store.state.language,
+            language: this.newsletterState ? this.$store.state.language : undefined,
           },
         })
         .then(() => {

frontend/yarn.lock

@@ -13576,13 +13576,6 @@ vue-jest@^3.0.5, vue-jest@^3.0.7:
     tsconfig "^7.0.0"
     vue-template-es2015-compiler "^1.6.0"
 
-vue-jwt-decode@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/vue-jwt-decode/-/vue-jwt-decode-0.1.0.tgz#f9caf7b9030d5459cc567b1c3117d9d1f291458f"
-  integrity sha512-4iP0NzYHkAF7G13tYPc/nudk4oNpB8GCVZupc7lekxXok1XKEgefNaGTpDT14g7RKe5H9GaMphPduDj4UVfZwQ==
-  dependencies:
-    vue "^2.3.3"
-
 vue-loader@^15.7.0:
   version "15.9.6"
   resolved "https://registry.yarnpkg.com/vue-loader/-/vue-loader-15.9.6.tgz#f4bb9ae20c3a8370af3ecf09b8126d38ffdb6b8b"
@@ -13662,11 +13655,6 @@ vue@^2.2.6, vue@^2.5.17, vue@^2.6.11:
   resolved "https://registry.yarnpkg.com/vue/-/vue-2.6.12.tgz#f5ebd4fa6bd2869403e29a896aed4904456c9123"
   integrity sha512-uhmLFETqPPNyuLLbsKz6ioJ4q7AZHzD8ZVFNATNyICSZouqP2Sz0rotWQC8UNBF6VGSCs5abnKJoStA6JbCbfg==
 
-vue@^2.3.3:
-  version "2.6.14"
-  resolved "https://registry.yarnpkg.com/vue/-/vue-2.6.14.tgz#e51aa5250250d569a3fbad3a8a5a687d6036e235"
-  integrity sha512-x2284lgYvjOMj3Za7kqzRcUSxBboHqtgRE2zlos1qWaOye5yUmHn42LB1250NJBLRwEcdrB0JRwyPTEPhfQjiQ==
-
 vuex-persistedstate@^4.0.0-beta.3:
   version "4.0.0-beta.3"
   resolved "https://registry.yarnpkg.com/vuex-persistedstate/-/vuex-persistedstate-4.0.0-beta.3.tgz#89dd712de72d28e85cc95467d066002c1405f277"