refactor(editor): Refactor utils files and mixins (#4654)

* ✨ Added `utils` module. Moved `canvasHelpers` and old `utils.ts` file to it
* ✨ Moved rest of utils and helpers
* ⚡ Fixing sytax errors
* 🔨 Refactoring new utils files
* 🔨 Organizing imports, adding comments and a bit more refactoring
* ✔️ Fixing tests
* 🔨 Moving mixins to `src`

packages/editor-ui/src/api/workflows.ts

@@ -1,6 +1,6 @@
 import { IRestApiContext } from '@/Interface';
 import { IDataObject } from 'n8n-workflow';
-import { makeRestApiRequest } from './helpers';
+import { makeRestApiRequest } from '@/utils';
 
 export async function getNewWorkflow(context: IRestApiContext, name?: string) {
 	const response = await makeRestApiRequest(context, 'GET', `/workflows/new`, name ? { name } : {});