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/communityNodes.ts

@@ -1,6 +1,6 @@
 import { IRestApiContext } from '@/Interface';
 import { PublicInstalledPackage } from 'n8n-workflow';
-import { get, post, makeRestApiRequest } from './helpers';
+import { get, post, makeRestApiRequest } from '@/utils';
 
 export async function getInstalledCommunityNodes(context: IRestApiContext): Promise<PublicInstalledPackage[]> {
 	const response = await get(context.baseUrl, '/nodes');