Revert "feat: upgrade tailwindcss v4"

jest.config.js

@@ -0,0 +1,30 @@
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const nextJest = require('next/jest');
+
+const createJestConfig = nextJest({
+  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
+  dir: './',
+});
+
+// Add any custom config to be passed to Jest
+const customJestConfig = {
+  // Add more setup options before each test is run
+  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
+
+  // if using TypeScript with a baseUrl set to the root directory then you need the below for alias' to work
+  moduleDirectories: ['node_modules', '<rootDir>/'],
+
+  testEnvironment: 'jest-environment-jsdom',
+
+  /**
+   * Absolute imports and Module Path Aliases
+   */
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+    '^~/(.*)$': '<rootDir>/public/$1',
+    '^.+\\.(svg)$': '<rootDir>/src/__mocks__/svg.tsx',
+  },
+};
+
+// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
+module.exports = createJestConfig(customJestConfig);