fix: add jest dependency and remove extra configs from jest.config.js

jest.config.js

@@ -1,29 +1,5 @@
 module.exports = {
-    // Use jsdom to simulate a browser environment
-    testEnvironment: 'jest-environment-jsdom',
-
-    // Specify where Jest should look for test files
-    testMatch: ['**/?(*.)+(spec|test).[jt]s?(x)'],
-
-    // Transform JavaScript files using Babel (if needed)
-    transform: {
-        '^.+\\.jsx?$': 'babel-jest',
-    },
-
-    // Clear mocks between tests for isolation
+    testMatch: ['**/__tests__/**/*.test.js', '**/?(*.)+(spec|test).[jt]s?(x)'],
     clearMocks: true,
-
-    // Collect coverage information and specify the directory
-    collectCoverage: true,
-    coverageDirectory: 'coverage',
-
-    // Specify file extensions Jest will process
-    moduleFileExtensions: ['js', 'jsx', 'json', 'node'],
-
-    // Define any global variables for the tests
-    globals: {
-        'window': {},
-    },
-    // Set up files to run before tests (e.g., polyfills, setup scripts)
-    setupFiles: ['./jest.setup.js'], // Optional, if you have a setup file
+    moduleFileExtensions: ['js', 'json', 'node'],
 };