Create basic component for group tab

aleksis/apps/maka/frontend/components/efforts/GroupPage_EffortTab.vue

+<script>
+import groupOverviewTabMixin from "aleksis.core/mixins/groupOverviewTabMixin.js";
+import PersonChip from "aleksis.core/components/person/PersonChip.vue";
+
+export default {
+  name: "GroupPage_EffortTab",
+  components: { PersonChip },
+  mixins: [groupOverviewTabMixin],
+  computed: {
+    headers() {
+      return [
+        {
+          text: this.$t("person.name"),
+          align: "start",
+          value: "fullName",
+        },
+
+        { align: "end", sortable: false, value: "id" },
+      ];
+    }
+  },
+}
+</script>
+
+<template>
+  <v-data-table :headers="headers" :items="group.members">
+    <!-- eslint-disable-next-line vue/valid-v-slot -->
+    <template #item.fullName="{ item }">
+      <person-chip :person="item" />
+    </template>
+  </v-data-table>
+</template>
+
+<style scoped>
+
+</style>
\ No newline at end of file

aleksis/apps/maka/frontend/index.js

 import { hasPersonValidator } from "aleksis.core/routeValidators";
 
+export const collectionItems = {
+  coreGroupOverview: [
+    {
+      tab: {
+        id: "maka.group_efforts",
+        titleKey: "group.tabs.group_efforts_tab",
+      },
+      titleKey: "group.tabs.group_efforts",
+      component: () =>
+        import("./components/efforts/GroupPage_EffortTab.vue"),
+    },
+  ],
+};
+
+
 export default {
   meta: {
     inMenu: true,

aleksis/apps/maka/frontend/messages/en.json

@@ -28,5 +28,11 @@
       "default": "Default Effort Type",
       "default_helptext": "Will disable previous default when enabled"
     }
+  },
+  "group": {
+    "tabs": {
+      "group_efforts_tab": "Grades",
+      "group_efforts": "Grade Book"
+    }
   }
 }