Resolve "Add export functionality to course book"

Closes #258 (closed)

aleksis/apps/alsijil/frontend/components/coursebook/statistics/MockPerson.vue

+<template>
+  <statistics-for-person-card :person="{ id: 100 }" />
+</template>
+
+<script>
+import StatisticsForPersonCard from "./StatisticsForPersonCard.vue";
+
+export default {
+  name: "MockPerson",
+  components: {
+    StatisticsForPersonCard,
+  },
+  extends: "StatisticsForPersonCard",
+};
+</script>