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/workflow-webhooks.ts

@@ -1,5 +1,5 @@
 import { IOnboardingCallPrompt, IOnboardingCallPromptResponse, IUser } from "@/Interface";
-import { get, post } from "./helpers";
+import { get, post } from "@/utils";
 
 const N8N_API_BASE_URL = 'https://api.n8n.io/api';
 const ONBOARDING_PROMPTS_ENDPOINT = '/prompts/onboarding';