Move jest-setup.js to ./test folder

jest-setup.js

@@ -1,2 +0,0 @@
-// Import Jest Native matchers
-import '@testing-library/jest-native/extend-expect'

jest.config.js

@@ -1,7 +1,7 @@
 module.exports = {
   preset: '@testing-library/react-native',
   moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json'],
-  setupFilesAfterEnv: ['./jest-setup.js'],
+  setupFilesAfterEnv: ['./test/jest-setup.js'],
   transformIgnorePatterns: [
     'node_modules/(?!((jest-)?react-native(-.*)?|@react-native(-community)?)/)',
   ],

test/jest-setup.js

@@ -0,0 +1,8 @@
+// Import Jest Native matchers
+import '@testing-library/jest-native/extend-expect'
+
+jest.mock('react-i18next', () => ({
+  useTranslation: () => ({
+    t: (str, options) => str + (options ? JSON.stringify(options) : ''),
+  }),
+}))