Merge pull request #5 from Space48/hotfix/1.0.1

fix: add jest.config.js for proper test environment

Author: AndrewBarber

jest.config.js

@@ -0,0 +1,8 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'jsdom',
+  transform: {
+    '^.+\.tsx?$': 'ts-jest',
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node']
+};