implement ChoiceSetting for settings modal similar to BooleanSetting

src/components/settings_modal/helpers/choice_setting.js

@@ -0,0 +1,34 @@
+import { get, set } from 'lodash'
+import Select from 'src/components/select/select.vue'
+import ModifiedIndicator from './modified_indicator.vue'
+export default {
+  components: {
+    Select,
+    ModifiedIndicator
+  },
+  props: [
+    'path',
+    'disabled',
+    'options'
+  ],
+  computed: {
+    pathDefault () {
+      const [firstSegment, ...rest] = this.path.split('.')
+      return [firstSegment + 'DefaultValue', ...rest].join('.')
+    },
+    state () {
+      return get(this.$parent, this.path)
+    },
+    defaultState () {
+      return get(this.$parent, this.pathDefault)
+    },
+    isChanged () {
+      return get(this.$parent, this.path) !== get(this.$parent, this.pathDefault)
+    }
+  },
+  methods: {
+    update (e) {
+      set(this.$parent, this.path, e)
+    }
+  }
+}