fix: misc quiz issues

frontend/src/pages/Lesson.vue

@@ -120,6 +120,7 @@
 				</div>
 				<div
 					v-if="
+						lesson.data.instructor_content &&
 						JSON.parse(lesson.data.instructor_content)?.blocks?.length > 1 &&
 						allowInstructorContent()
 					"

frontend/src/pages/QuizForm.vue

@@ -4,6 +4,19 @@
 	>
 		<Breadcrumbs :items="breadcrumbs" />
 		<div class="space-x-2">
+			<router-link
+				v-if="quizDetails.data?.name"
+				:to="{
+					name: 'QuizPage',
+					params: {
+						quizID: quizDetails.data.name,
+					},
+				}"
+			>
+				<Button>
+					{{ __('Open') }}
+				</Button>
+			</router-link>
 			<router-link
 				v-if="quizDetails.data?.name"
 				:to="{