refactor(frontend): Linting errors wegwerken

frontend/src/views/learning-paths/learning-object/LearningObjectView.vue

@@ -9,7 +9,7 @@
     import LearningObjectContentView from "@/views/learning-paths/learning-object/content/LearningObjectContentView.vue";
     import LearningObjectSubmissionsView from "@/views/learning-paths/learning-object/submissions/LearningObjectSubmissionsView.vue";
 
-    const isStudent = computed(() => authService.authState.activeRole === "student");
+    const _isStudent = computed(() => authService.authState.activeRole === "student");
 
     const props = defineProps<{
         hruid: string;

frontend/src/views/learning-paths/learning-object/content/LearningObjectContentView.vue

@@ -9,18 +9,19 @@
         submissionData?: SubmissionData;
     }>();
 
-    const emit = defineEmits<{
-        (e: "update:submissionData", value: SubmissionData): void;
-    }>();
+    const emit = defineEmits<(e: "update:submissionData", value: SubmissionData) => void>();
 
     const submissionData = computed<SubmissionData | undefined>({
         get: () => props.submissionData,
-        set: (v?: SubmissionData) => (v ? emit("update:submissionData", v) : undefined),
+        set: (v?: SubmissionData): void => {
+          if (v)
+            emit("update:submissionData", v)
+        },
     });
 
     function forEachQuestion(
         doAction: (questionIndex: number, questionName: string, questionType: string, questionElement: Element) => void,
-    ) {
+    ): void {
         const questions = document.querySelectorAll(".gift-question");
         questions.forEach((question) => {
             const name = question.id.match(/gift-q(\d+)/)?.[1];
@@ -45,8 +46,8 @@
         });
     }
 
-    function setAnswers(answers: SubmissionData) {
-        forEachQuestion((index, name, type, element) => {
+    function setAnswers(answers: SubmissionData): void {
+        forEachQuestion((index, _name, type, element) => {
             const answer = answers[index];
             if (answer !== null && answer !== undefined) {
                 getGiftAdapterForType(type)?.setAnswer(element, answer);
@@ -57,7 +58,7 @@
         submissionData.value = answers;
     }
 
-    onMounted(() =>
+    onMounted(async () =>
         nextTick(() => {
             attachQuestionListeners();
             setAnswers(props.submissionData ?? []);

frontend/src/views/learning-paths/learning-object/submissions/LearningObjectSubmissionsTable.vue

@@ -8,9 +8,7 @@
     const props = defineProps<{
         allSubmissions: SubmissionDTO[];
     }>();
-    const emit = defineEmits<{
-        (e: "submission-selected", submission: SubmissionDTO): void;
-    }>();
+    const emit = defineEmits<(e: "submission-selected", submission: SubmissionDTO) => void>();
 
     const headers = computed(() => [
         { title: "#", value: "submissionNo", width: "50px" },
@@ -30,7 +28,7 @@
             })),
     );
 
-    function selectSubmission(submission: SubmissionDTO) {
+    function selectSubmission(submission: SubmissionDTO): void {
         emit("submission-selected", submission);
     }
 </script>
@@ -46,7 +44,7 @@
                 hide-default-footer
                 :no-data-text="t('noSubmissionsYet')"
             >
-                <template v-slot:item.action="{ item }">
+                <template v-slot:[`item.action`]="{ item }">
                     <v-btn
                         density="compact"
                         variant="plain"

frontend/src/views/learning-paths/learning-object/submissions/LearningObjectSubmissionsView.vue

@@ -18,9 +18,7 @@
         version: number;
         group: { forGroup: number; assignmentNo: number; classId: string };
     }>();
-    const emit = defineEmits<{
-        (e: "update:submissionData", value: SubmissionData): void;
-    }>();
+    const emit = defineEmits<(e: "update:submissionData", value: SubmissionData) => void>();
 
     const submissionQuery = useSubmissionsQuery(
         () => props.hruid,
@@ -32,11 +30,11 @@
         () => true,
     );
 
-    function emitSubmissionData(submissionData: SubmissionData) {
+    function emitSubmissionData(submissionData: SubmissionData): void {
         emit("update:submissionData", submissionData);
     }
 
-    function emitSubmission(submission: SubmissionDTO) {
+    function emitSubmission(submission: SubmissionDTO): void {
         emitSubmissionData(JSON.parse(submission.content));
     }
 

frontend/src/views/learning-paths/learning-object/submissions/SubmitButton.vue

@@ -25,9 +25,9 @@
 
     const {
         isPending: submissionIsPending,
-        isError: submissionFailed,
-        error: submissionError,
-        isSuccess: submissionSuccess,
+        // - isError: submissionFailed,
+        // - error: submissionError,
+        // - isSuccess: submissionSuccess,
         mutate: submitSolution,
     } = useCreateSubmissionMutation();
 
@@ -47,11 +47,11 @@
     });
 
     function submitCurrentAnswer(): void {
-        const { forGroup, assignmentNo, classId } = props.group!;
+        const { forGroup, assignmentNo, classId } = props.group;
         const currentUser: UserProfile = authService.authState.user!.profile;
         const learningObjectIdentifier: LearningObjectIdentifierDTO = {
             hruid: props.hruid,
-            language: props.language as Language,
+            language: props.language,
             version: props.version,
         };
         const submitter: StudentDTO = {