export issue fixed and updated sample app to use dist index js file

Author: eco-line

index.ts

@@ -281,4 +281,4 @@ var ImageKit = function(
     }
 };
 
-export default ImageKit;
+export = ImageKit;

package.json

@@ -7,7 +7,7 @@
   "scripts": {
     "lint": "./node_modules/eslint/bin/eslint.js tests/ utils/phash.js",
     "lint:fix": "./node_modules/eslint/bin/eslint.js --fix tests/ utils/phash.js",
-    "check-types": "tsc",
+    "compile": "tsc",
     "test": "export NODE_ENV=test; nyc ./node_modules/mocha/bin/mocha --exit -t 40000 tests/*.js;ex=$?;unset NODE_ENV; exit $ex;",
     "report-coverage": "nyc report --reporter=text-lcov > coverage.lcov && codecov"
   },

sample/index.js

@@ -1,11 +1,11 @@
-const ImageKit = require("../index");
+const ImageKit = require("../dist/");
 const fs = require("fs");
 const path = require("path");
 
 const CONFIG_OPTIONS = {
-    publicKey : "public_gpyr8A2ZBDZvUBvyNSeacygiTb0=",
-    privateKey : "private_X+BMCEhq/Fx+E3TbXadFw7QhwgI=",
-    urlEndpoint : "https://ik.imagekit.io/0gr1w07bzr6iu/"
+    publicKey : "your_public_api_key",
+    privateKey : "your_private_api_key",
+    urlEndpoint : "https://ik.imagekit.io/your_imagekit_id/"
 }
 
 const FILE_PATH = path.resolve(__dirname, "./test_image.jpg"), FILE_NAME = "test_image", IMG_URL = "https://images.pexels.com/photos/247676/pexels-photo-247676.jpeg?auto=compress&cs=tinysrgb&dpr=3&h=750&w=1260";

tsconfig.json

@@ -5,7 +5,7 @@
 	  /* Basic Options */
 	  // "incremental": true,                         /* Enable incremental compilation */
 	  "target": "es5",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
-	  "module": "es2015",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+	  "module": "commonjs",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
 	  // "lib": [],                                   /* Specify library files to be included in the compilation. */
 	  // "allowJs": true,                             /* Allow javascript files to be compiled. */
 	  // "checkJs": true,                             /* Report errors in .js files. */