Move editor_service to services dir

app/assets/javascripts/vue_shared/components/rich_content_editor/constants.js

 import { __ } from '~/locale';
-import { generateToolbarItem } from './editor_service';
+import { generateToolbarItem } from './services/editor_service';
 import buildCustomHTMLRenderer from './services/build_custom_renderer';
 
 export const CUSTOM_EVENTS = {

app/assets/javascripts/vue_shared/components/rich_content_editor/rich_content_editor.vue

@@ -16,7 +16,7 @@ import {
   removeCustomEventListener,
   addImage,
   getMarkdown,
-} from './editor_service';
+} from './services/editor_service';
 
 export default {
   components: {

app/assets/javascripts/vue_shared/components/rich_content_editor/editor_service.js → app/assets/javascripts/vue_shared/components/rich_content_editor/services/editor_service.js

 import Vue from 'vue';
-import ToolbarItem from './toolbar_item.vue';
+import ToolbarItem from '../toolbar_item.vue';
 
 const buildWrapper = propsData => {
   const instance = new Vue({

spec/frontend/vue_shared/components/rich_content_editor/editor_service_spec.js

@@ -4,7 +4,7 @@ import {
   removeCustomEventListener,
   addImage,
   getMarkdown,
-} from '~/vue_shared/components/rich_content_editor/editor_service';
+} from '~/vue_shared/components/rich_content_editor/services/editor_service';
 
 describe('Editor Service', () => {
   const mockInstance = {

spec/frontend/vue_shared/components/rich_content_editor/rich_content_editor_spec.js

@@ -13,10 +13,10 @@ import {
   addCustomEventListener,
   removeCustomEventListener,
   addImage,
-} from '~/vue_shared/components/rich_content_editor/editor_service';
+} from '~/vue_shared/components/rich_content_editor/services/editor_service';
 
-jest.mock('~/vue_shared/components/rich_content_editor/editor_service', () => ({
-  ...jest.requireActual('~/vue_shared/components/rich_content_editor/editor_service'),
+jest.mock('~/vue_shared/components/rich_content_editor/services/editor_service', () => ({
+  ...jest.requireActual('~/vue_shared/components/rich_content_editor/services/editor_service'),
   addCustomEventListener: jest.fn(),
   removeCustomEventListener: jest.fn(),
   addImage: jest.fn(),