diff --git a/frontend/src/queries/answers.ts b/frontend/src/queries/answers.ts
index 830f3066..49ca7449 100644
--- a/frontend/src/queries/answers.ts
+++ b/frontend/src/queries/answers.ts
@@ -1,4 +1,4 @@
-import {computed, type MaybeRefOrGetter, toValue} from "vue";
+import { computed, type MaybeRefOrGetter, toValue } from "vue";
 import {
     useMutation,
     type UseMutationReturnType,
@@ -6,20 +6,22 @@ import {
     type UseQueryReturnType,
     useQueryClient,
 } from "@tanstack/vue-query";
-import {
-    AnswerController,
-    type AnswerResponse,
-    type AnswersResponse,
-} from "@/controllers/answers.ts";
+import { AnswerController, type AnswerResponse, type AnswersResponse } from "@/controllers/answers.ts";
 import type { AnswerData } from "@dwengo-1/common/interfaces/answer";
-import type {QuestionId} from "@dwengo-1/common/interfaces/question";
+import type { QuestionId } from "@dwengo-1/common/interfaces/question";
 
 /** 🔑 Query keys */
-export function answersQueryKey(questionId: QuestionId, full: boolean): [string, string, number, string, number, boolean] {
+export function answersQueryKey(
+    questionId: QuestionId,
+    full: boolean,
+): [string, string, number, string, number, boolean] {
     const loId = questionId.learningObjectIdentifier;
     return ["answers", loId.hruid, loId.version!, loId.language, questionId.sequenceNumber, full];
 }
-export function answerQueryKey(questionId: QuestionId, sequenceNumber: number): [string, string, number, string, number, number] {
+export function answerQueryKey(
+    questionId: QuestionId,
+    sequenceNumber: number,
+): [string, string, number, string, number, number] {
     const loId = questionId.learningObjectIdentifier;
     return ["answer", loId.hruid, loId.version!, loId.language, questionId.sequenceNumber, sequenceNumber];
 }
@@ -88,8 +90,7 @@ export function useUpdateAnswerMutation(
     const queryClient = useQueryClient();
 
     return useMutation({
-        mutationFn: async ({ answerData, seq }) =>
-            new AnswerController(toValue(questionId)).update(seq, answerData),
+        mutationFn: async ({ answerData, seq }) => new AnswerController(toValue(questionId)).update(seq, answerData),
         onSuccess: async (_, { seq }) => {
             await queryClient.invalidateQueries({
                 queryKey: answerQueryKey(toValue(questionId), seq),
diff --git a/frontend/src/queries/teacher-invitations.ts b/frontend/src/queries/teacher-invitations.ts
index 3e650343..0d6c3d1c 100644
--- a/frontend/src/queries/teacher-invitations.ts
+++ b/frontend/src/queries/teacher-invitations.ts
@@ -22,7 +22,7 @@ export function teacherInvitationsSentQueryKey(username: string): [string, strin
 }
 
 export function teacherInvitationsReceivedQueryKey(username: string): [string, string, string] {
-    return ["teacher-invitations", "received", username ];
+    return ["teacher-invitations", "received", username];
 }
 
 export function teacherInvitationQueryKey(data: TeacherInvitationData): [string, string, string, string] {
diff --git a/frontend/src/queries/themes.ts b/frontend/src/queries/themes.ts
index ee197d14..02e7837d 100644
--- a/frontend/src/queries/themes.ts
+++ b/frontend/src/queries/themes.ts
@@ -1,7 +1,7 @@
 import { useQuery, type UseQueryReturnType } from "@tanstack/vue-query";
 import { type MaybeRefOrGetter, toValue } from "vue";
 import { getThemeController } from "@/controllers/controllers.ts";
-import type {Theme} from "@dwengo-1/common/interfaces/theme";
+import type { Theme } from "@dwengo-1/common/interfaces/theme";
 
 const themeController = getThemeController();
 
diff --git a/frontend/src/views/classes/SingleClass.vue b/frontend/src/views/classes/SingleClass.vue
index f058d6be..c99a27ea 100644
--- a/frontend/src/views/classes/SingleClass.vue
+++ b/frontend/src/views/classes/SingleClass.vue
@@ -38,7 +38,7 @@
         isLoading.value = true;
         try {
             const userObject = await authState.loadUser();
-            username.value = userObject!.profile!.preferred_username;
+            username.value = userObject!.profile.preferred_username;
         } catch (error) {
             isError.value = true;
             errorMessage.value = error instanceof Error ? error.message : String(error);
diff --git a/frontend/src/views/classes/StudentClasses.vue b/frontend/src/views/classes/StudentClasses.vue
index d3333b50..4d7cc369 100644
--- a/frontend/src/views/classes/StudentClasses.vue
+++ b/frontend/src/views/classes/StudentClasses.vue
@@ -30,7 +30,7 @@
         isLoading.value = true;
         try {
             const userObject = await authState.loadUser();
-            username.value = userObject!.profile!.preferred_username;
+            username.value = userObject!.profile.preferred_username;
         } catch (error) {
             isError.value = true;
             errorMessage.value = error instanceof Error ? error.message : String(error);
diff --git a/frontend/src/views/classes/TeacherClasses.vue b/frontend/src/views/classes/TeacherClasses.vue
index dd3456d0..e797556c 100644
--- a/frontend/src/views/classes/TeacherClasses.vue
+++ b/frontend/src/views/classes/TeacherClasses.vue
@@ -8,12 +8,11 @@
     import { useTeacherClassesQuery } from "@/queries/teachers";
     import type { ClassesResponse } from "@/controllers/classes";
     import UsingQueryResult from "@/components/UsingQueryResult.vue";
-    import { useClassesQuery, useClassTeacherInvitationsQuery, useCreateClassMutation } from "@/queries/classes";
+    import { useClassesQuery, useCreateClassMutation } from "@/queries/classes";
     import type { TeacherInvitationsResponse } from "@/controllers/teacher-invitations";
     import {
         useRespondTeacherInvitationMutation,
         useTeacherInvitationsReceivedQuery,
-        useTeacherInvitationsSentQuery,
     } from "@/queries/teacher-invitations";
 
     const { t } = useI18n();
@@ -29,7 +28,7 @@
         isLoading.value = true;
         try {
             const userObject = await authState.loadUser();
-            username.value = userObject!.profile!.preferred_username;
+            username.value = userObject!.profile.preferred_username;
         } catch (error) {
             isError.value = true;
             errorMessage.value = error instanceof Error ? error.message : String(error);