Fix exports to match tsup output (.js for ESM, .cjs for CJS)

Author: unlibra

package.json

@@ -24,19 +24,19 @@
     "url": "https://github.com/unlibra/next-i18n-tiny/issues"
   },
   "homepage": "https://github.com/unlibra/next-i18n-tiny#readme",
-  "main": "./dist/index.js",
-  "module": "./dist/index.mjs",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.mjs",
-      "require": "./dist/index.js"
+      "import": "./dist/index.js",
+      "require": "./dist/index.cjs"
     },
     "./types": {
       "types": "./dist/types.d.ts",
-      "import": "./dist/types.mjs",
-      "require": "./dist/types.js"
+      "import": "./dist/types.js",
+      "require": "./dist/types.cjs"
     }
   },
   "files": [