fix: ESM TypeScript types resolution (#46)

Author: Hazmi35

Diff for: package.json

@@ -5,13 +5,13 @@
   },
   "version": "0.2.2",
   "license": "GPL-3.0",
-  "main": "dist/index.js",
-  "module": "dist/index.mjs",
+  "main": "./dist/index.js",
+  "module": "./dist/index.mjs",
+  "types": "./dist/index.d.ts",
   "exports": {
-    ".": {
-      "import": "./dist/index.mjs",
-      "require": "./dist/index.js"
-    }
+    "types": "./dist/index.d.ts",
+    "import": "./dist/index.mjs",
+    "require": "./dist/index.js"
   },
   "repository": {
     "url": "https://github.com/kirishima-ship/rest"