refactor(config): migrate configuration files to ES module syntax

- Updated jest.config.js, postcss.config.js, and tailwind.config.js to use ES module export syntax.
- Added "type": "module" to package.json to support ES module imports.
- Refactored copy-tinymce.js to utilize ES module imports and defined __dirname for compatibility.

worklenz-frontend/jest.config.js

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   setupFilesAfterEnv: ['<rootDir>/src/setupTests.ts'],
   moduleNameMapper: {
     '^@/(.*)$': '<rootDir>/src/$1',

worklenz-frontend/package.json

@@ -2,6 +2,7 @@
   "name": "worklenz",
   "version": "1.0.0",
   "private": true,
+  "type": "module",
   "scripts": {
     "start": "vite",
     "prebuild": "node scripts/copy-tinymce.js",

worklenz-frontend/postcss.config.js

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   plugins: {
     tailwindcss: {},
     autoprefixer: {},

worklenz-frontend/scripts/copy-tinymce.js

@@ -1,5 +1,10 @@
-const fs = require('fs');
-const path = require('path');
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+// Get __dirname equivalent for ES modules
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 // Create the directory if it doesn't exist
 const targetDir = path.join(__dirname, '..', 'public', 'tinymce');

worklenz-frontend/tailwind.config.js

@@ -1,5 +1,5 @@
 /** @type {import('tailwindcss').Config} */
-module.exports = {
+export default {
   content: ['./src/**/*.{js,jsx,ts,tsx}'],
   theme: {
     extend: {},