chore: improve typescript definition

.changeset/afraid-seas-confess.md

@@ -0,0 +1,5 @@
+---
+'@dimensiondev/stego-js': patch
+---
+
+improve typescript definition

package.json

@@ -11,6 +11,7 @@
   "module": "./esm/node.js",
   "browser": "./esm/dom.js",
   "bin": "./esm/cli/cli.js",
+  "types": "./esm/dom.js",
   "scripts": {
     "build": "pnpm run build:umd && pnpm run build:dist",
     "build:dist": "tsc -b ./tsconfig.json ./tests/tsconfig.json",

src/dom.ts

@@ -2,7 +2,7 @@ import { createAPI } from './utils/expose.js'
 import { getImageType } from './utils/helper.js'
 import { preprocessImage } from './utils/image.js'
 
-export { getImageType }
+export { getImageType } from './utils/helper.js'
 export * from './utils/types.js'
 export * from './constant.js'
 

src/node.ts

@@ -1,10 +1,9 @@
 import { JsColorType, Transformer } from '@napi-rs/image'
 import { randomFillSync } from 'crypto'
 import { createAPI } from './utils/expose.js'
-import { getImageType } from './utils/helper.js'
 import { preprocessImage } from './utils/image.js'
 
-export { getImageType }
+export { getImageType } from './utils/helper.js'
 export * from './utils/types.js'
 export * from './constant.js'