feat: add frontend

frontend/plugins/axios-accessor.ts

@@ -0,0 +1,7 @@
+import { initializeAxios } from '~/utils/api'
+
+const accessor: ({$axios}: { $axios: any }) => void = ({ $axios }) => {
+  initializeAxios($axios)
+}
+
+export default accessor

frontend/plugins/filters.ts

@@ -0,0 +1,13 @@
+import Vue from 'vue'
+
+Vue.filter('formatDate', (value: string) => {
+  const date = new Date(value);
+  return `${(date.getDate() > 9 ? '' : '0')
+  + date.getDate()}/${((date.getMonth() + 1) > 9 ? "" : "0")
+  + (date.getMonth() + 1)}/${date.getFullYear()}`;
+})
+
+Vue.filter('formatRate', (value: number) => {
+  return value.toFixed(1);
+})
+