Fix amount preview for scanned receipts (#227)

* no division of amount

* use gpt-4-turbo

* testing setup and naive test

* test multiple variants

* document

* correct locale names

* test large amounts

* test wth strings

* prettier

jest.config.ts

@@ -0,0 +1,18 @@
+import type { Config } from 'jest'
+import nextJest from 'next/jest.js'
+ 
+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 config: Config = {
+  coverageProvider: 'v8',
+  testEnvironment: 'jsdom',
+  // Add more setup options before each test is run
+  // setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
+}
+ 
+// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
+export default createJestConfig(config)