[feat] Split federation/settings admin components

components/admin/Federation.vue

@@ -0,0 +1,22 @@
+<template lang="pug">
+  div
+    el-divider {{$t('admin.federation')}}
+    el-form(inline label-width='400px')
+      el-form-item(:label="$t('admin.enable_federation')")
+        el-switch(v-model='enable_federation')    
+</template>
+<script>
+import { mapState, mapActions } from 'vuex'
+
+export default {
+  name: 'Federation',
+  methods: mapActions(['setSetting']),
+  computed: {
+    ...mapState(['settings']),
+    enable_federation: {
+      get () { return this.settings.enable_federation },
+      set (value) { this.setSetting({ key: 'enable_federation', value }) }
+    },
+  }
+}
+</script>